Perhaps you should try some spelling variations:
wang wang » wang yang, wang liang, wang yan
gene tang » gene bank
zhang hai » zhang dai, shang hai, zhang hui
zhang han » zhang fan, zhang yan, zhang hanmo
yang hua » wang hua, yang hui, ying hua
yang jui » yang judy, yang di, yang xi
tang bin » tang min, huang bin, dann bin

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

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