Well i'm developing a visualforce page where have a query that returns the value of the fields of my account object, but is not returning nothing on my search. someone could help me?

visualforce page

 

<apex:page standardController="account" extensions="AccountSearch_clt">

    <apex:sectionHeader title="Pesquisa de Cliente" />
    <apex:form id="theform">
        <apex:pagemessages escape="false" id="messages" />
        <apex:pageBlock title="Pesquisa de Cliente ERP" >
        	
            <apex:pageBlockSection columns="2" >
                <apex:pageBlockSection columns="1" >
                    <apex:inputText value="{!PesquisaCodCliente}" label="Codigo Cliente/Endereco">
                        <apex:inputText value="{!PesquisaCodEndereco}" /> -&nbsp; &nbsp;&nbsp;
                    </apex:inputText>
                    <apex:inputText value="{!cia}" label="Cia/Documento">
                        <apex:inputText value="{!tipoDocumento}" html-autocomplete="off" /> -&nbsp; &nbsp;
                    </apex:inputText>
                    <apex:inputText value="{!NumeroDocumento}" label="Numero Documento/ Razao Social">
                        <apex:inputText value="{!RazaoSocial}" html-autocomplete="off" /> -&nbsp; &nbsp;
                    </apex:inputText>
                    <apex:inputText value="{!NomeFantasia}" label="Nome Fantasia/ CEP">
                        <apex:inputText value="{!RazaoSocial}" html-autocomplete="off" /> -&nbsp; &nbsp;
                    </apex:inputText>
                </apex:pageBlockSection>
            </apex:pageBlockSection>
            <apex:pageBlockButtons location="top">
                <apex:commandButton value="Pesquisar" action="{!doSearch}" rerender="theform" />
                <apex:commandButton value="Cancelar" action="{!cancel}" style="color:red;" />
            </apex:pageBlockButtons>
        </apex:pageBlock>
        
        <c:PageBlockTableEnhancerADV targetPbTableIds="pbt" pageSizeOptions="5,10,15,30" defaultPageSize="5" enableExport="false" />
        <apex:pageBlock mode="maindetail" id="pb">
            <apex:pageblockTable value="{!listAccPesquisa}" var="item" id="pbt">
                <apex:column value="{!item.CustomerNumber__c}" />
                <apex:column value="{!item['Name']}"/> 
                <apex:column value="{!item.Id}" />
                <apex:column value="{!item .Tipo_de_Documento__c}" />
            </apex:pageblockTable>
        </apex:pageBlock>
    </apex:form>
</apex:page>

public with sharing class AccountSearch_clt {	

	public string NomeFantasia 	  	  {get;set;}  
	public string Pesquisastring	  {get;set;}
	public string PesquisaCodCliente  {get;set;}
	public string PesquisaCodEndereco {get;set;}
	public string cia				  {get;set;}
	public string tipoDocumento		  {get;set;}
	public string RazaoSocial		  {get;set;}
	public string NumeroDocumento	  {get;set;}
	public string Temp 				  {get;set;}
	public list <Account> listAccPesquisa{get;set;} 
	
   /**********
   	construtor
   	contructor
   ***********/
   public AccountSearch_clt(ApexPages.StandardController controller) {  

   }  

   public void getAccounts(){

   	String stringComplemento = '';
     string searchquery='SELECT name, id, Tipo_de_Documento__c, SiteNumber__c, RazaoSocial__c, NomeFantasia__c, '+
     					'N_mero_do_Documento__c, CustomerNumber__c, Cia__c FROM Account ';
     			
     				if(PesquisaString != ''){     						
     					stringComplemento = ' WHERE name LIKE '+ '\'%' +PesquisaString+'%\'';
     				}
     					
     			     if(NomeFantasia != '' && NomeFantasia!=null){
     					 	if(stringComplemento!=''){
     					 		stringComplemento += ' and ';
     					 	}else{
     					 		stringComplemento += ' where ';
     					 	}
     						stringComplemento += ' NomeFantasia__c LIKE '+ '\'' +NomeFantasia+'\'';  
     					}
     					 
     					if(PesquisaCodCliente!= ''){
     						if(stringComplemento!=''){
     					 		stringComplemento += ' and ';
     					 	}else{
     					 		stringComplemento += ' where ';
     					 	}  
     						stringComplemento += ' CustomerNumber__c LIKE '+ '\'' +PesquisaCodCliente+'\'';
     					}
     					
     					if(PesquisaCodEndereco!= ''){
     						if(stringComplemento!=''){
     					 		stringComplemento += ' and ';
     					 	}else{
     					 		stringComplemento += ' where ';
     					 	}
     						stringComplemento += ' SiteNumber__c LIKE '+ '\'' +PesquisaCodEndereco+'\'';  
     					}
     					
     					if(cia!= ''){
     						if(stringComplemento!=''){
     					 		stringComplemento += ' and ';
     					 	}else{
     					 		stringComplemento += ' where ';
     					 	}
     						stringComplemento += ' Cia__c LIKE '+ '\'' +cia+'\'';  
     					}
     					
     					if(tipoDocumento!= ''){
     						if(stringComplemento!=''){
     					 		stringComplemento += ' and ';
     					 	}else{
     					 		stringComplemento += ' where ';
     					 	}
     						stringComplemento += ' Tipo_de_Documento__c LIKE '+ '\'' +tipoDocumento+'\'';  
     					}
     					
     					if(RazaoSocial!= ''){
     						if(stringComplemento!=''){
     					 		stringComplemento += ' and ';
     					 	}else{
     					 		stringComplemento += ' where ';
     					 	}
     						stringComplemento += ' RazaoSocial__c LIKE '+ '\'' +RazaoSocial+'\'';  
     					}
     					
     					if(NumeroDocumento!= ''){
     						if(stringComplemento!=''){
     					 		stringComplemento += ' and ';
     					 	}else{
     					 		stringComplemento += ' where ';
     					 	}
     						stringComplemento += ' N_mero_do_Documento__c LIKE '+ '\'' +NumeroDocumento+'\'';  
     					}
     					
     			searchquery =  searchquery + stringComplemento;   
     			Temp=searchquery ;
     			listAccPesquisa = Database.query(searchquery);
   }
   

   public void doSearch(){
  	 	getAccounts();   	
   } 
}