'find in path' matches too many spaces

How can I disable it?

e.g:

"\n {8}return foo\(\);"
matches
"
    return foo();"
and
"
         return foo();"
and
"
             return foo();"

The 'find' once I open the file no longer matches the same search afterwards. Is there no way to find with s specific amount of spaces?
Regex on or off doesn'T matter.