Perhaps you should try some spelling variations:
yan liang » yang liang, wang liang, you liang
yan ling » yang liang, yang jing, zhan ling
gene anh » gene bank, gene one
jin ying » li ying
jie song » jae song, jin song, kim song
li gene » i gene, l1 gene, iii gene
wang » wing, wan, lang

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: wang ((yan ling) OR (yan liang)) li gene anh ((jin ying) OR (jie song)) yun ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((yan ling) OR (yan liang)) li gene anh ((jin ying) or (jie song)) yun ;~".
• Adding a wildcard symbol may retrieve word variants: wang ((yan ling) OR (yan liang)) li gene anh ((jin ying) or (jie song)) yun ;*.