Perhaps you should try some spelling variations:
academic department » academic departments, academic development
academic patent » academic talent, academic content, academic papers
guessing papers » guessing games, using papers, guessing names

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "world ((academic department) OR (academic patent)) guessing papers".
• Adding a wildcard symbol may retrieve word variants: world ((academic department) OR (academic patent)) guessing papers*.