When you select a field you will have multiple options. You will also notice that you have the option to us Boolean Operators (AND, OR, NOT) in this search. Therefore, you can search different fields at the same time by using the Boolean Operators. These are the fields you can search by:
Then you have Search Modes & Expanders. By using the modes and expanders you will abe able to widen your search.
Within the Search modes you can:
You are also able to limit your results, this will narrow your search results:
If your search failed and there were no results, try unmarking one of the limiters you placed on the search.
If you are still receiving no results, try using different words or using Boolean Operators.