Perhaps you should try some spelling variations:
lang yan » wang yan, wang yang, zhang yan
yang hua » wang hua, yang hui, ying hua
gene yan » gene bank, ren yan, see yan
yang yi » yang di, yang jui
yang xi » yang di, yang jui
won sau » wong sau, wong sam, wong siu
yan ji » yan jiu, ban ji, pan ji

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

• Performing a fuzzy search may retrieve terms with similar spellings: lang yan ((yang hua) or (((((yang judy) or (yang yi))) or (yang xi)))) gene yan ji won sau ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: lang yan ((yang hua) OR (((((yang judy) OR (yang yi))) OR (yang xi)))) gene yan ji won sau ;.
• Adding a wildcard symbol may retrieve word variants: lang yan ((yang hua) or (((((yang judy) or (yang yi))) or (yang xi)))) gene yan ji won sau ;*.