Perhaps you should try some spelling variations:
wang yong » wang yang, wang hyoung, wang yan
yong yang » dong yang, ying yang, kyoung yang
yang yang » wang yang, wang yan
hoang hai » hong hai, dang hai, shang hai
yang lin » yang jin, wang lin, yang li
hua ren » hua chen
hoang h » hoang _, hoang vu, hoang sy
a gene » a genre, a gender, a gentle

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yong yang ((hua ren) or (a gene)) ((yang lin) or (yang yang)) ((hoang hai) OR (hoang h)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yong yang ((hua ren) OR (a gene)) ((yang lin) OR (yang yang)) ((hoang hai) OR (hoang h)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yong yang ((hua ren) or (a gene)) ((yang lin) or (yang yang)) ((hoang hai) OR (hoang h)) ;*".