Perhaps you should try some spelling variations:
gene liang » peng liang, wee liang
dong yang » dong hoang, dan yang, dong jung
yang yang » wang yan
wang yang » wang yan, wang liang, wang yanling
liang tan » liang dan, liang sun, wing tan
hua gene » human gene, a gene, hua ren
hong yu » wong yue

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((dong yang) OR (((yang yang) OR (wang yang)))) ryanling hua gene liang tan hong yu ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((dong yang) or (((yang yang) OR (wang yang)))) ryanling hua gene liang tan hong yu ;~".
• Adding a wildcard symbol may retrieve word variants: ((dong yang) or (((yang yang) OR (wang yang)))) ryanling hua gene liang tan hong yu ;*.