Perhaps you should try some spelling variations:
yuhan wang » yan wang, yuhuan huang
yuan wang » yan wang, yuan kang, yuan chang
hua gene » human gene, a gene, hua ren
yang thi » dang thi, yang chik, yang di
yang jui » yang judy, yang di, yang yi
yang xi » yang di, yang yi
hong yu » wong yue

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang ((yuhan wang) or (yuan wang)) hua gene ((((yang thi) OR (yang xi))) or (yang jui)) hong yu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((yuhan wang) OR (yuan wang)) hua gene ((((yang thi) OR (yang xi))) OR (yang jui)) hong yu ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((yuhan wang) or (yuan wang)) hua gene ((((yang thi) OR (yang xi))) or (yang jui)) hong yu ;".
• Adding a wildcard symbol may retrieve word variants: wang ((yuhan wang) or (yuan wang)) hua gene ((((yang thi) OR (yang xi))) or (yang jui)) hong yu ;*.