Did you set the correct index?

select myTable
set order to tag myIndex
seek(padr(variable,24," ")


Brute force. See if the value of the variable is equal to any of the records.
Display the records one by one compated with the value of the variable.

select myTable
go top
do while not eof()
? padr(myVariable,24," "),padr(field1+" "+field2,24," ")
?? padr(myVariable,24," ") = padr(field1+" "+field2,24," ")
skip
enddo