Perhaps you should try some spelling variations:
genome based » gender based, home based
david young » david loundy
game based » home based, case based
young men » young women
wing yan » wang yan, wing ian, wing tan
yang jin » yang jie, yang jun, ying jin
yang xi » yang di, yang yi, yang jui

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

• If you are trying to use Boolean operators, they must be ALL CAPS: wing yan ((yang jin) OR (yang xi)) ((genome based) OR (game based)) david young men ;~.
• Adding a wildcard symbol may retrieve word variants: wing yan ((yang jin) or (yang xi)) ((genome based) or (game based)) david young men ;*.