Perhaps you should try some spelling variations:
wang yang » wang yan, wang liang, wang yanling
yang yang » wang yan
hua gene » human gene, a gene, hy5 gene
yang jin » yang jie, yang jun, ying jin
wong sau » wong sam, wong siu, wong shiu
hua ren » hua chen
yan jiu » yang jie, pang jiu

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

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