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 WORDS that you enter in the search fields. It titles it is best to include only important words and to omit articles & prepositions. For authors use only first or last names. Best to enter an one important word in at least two different fields.
On your first search attempt you should 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. Best to use the author's last name & a significant word or words in the title. Older listings may use the an "&" instead of "and" in book titles. Also I omit the starting "The" in book titles. Authors middle names and initials are generally omitted.