The search results are determined by the combination of information entered into the search fields. The more information you enter, the fewer search results that will be returned. The search engine will try to match all the words that you enter in the search fields.
You might find it helpful, on your first search attempt, to only enter 2 or 3 words as your search criteria. If the first search yields to many results, then try entering more search criteria to reduce the search results.