Perhaps you should try some spelling variations:
yao ying » gao ying, fan ying, ka ying
ran ying » fan ying, tan ying, jin ying
yao yang » yang yang
hua gene » human gene, a gene, hua ren
lei ying » li ying, huei ying, hoi ying
ying sar » using sar, kong sar
gene i » gene _, gene m, gene 1
i lei » i levi, i le, i les

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

• Performing a fuzzy search may retrieve terms with similar spellings: (wan or lang) ((((yao ying) or (ran ying))) or (yao yang)) hua gene i lei ying sar ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (wan OR lang) ((((yao ying) OR (ran ying))) OR (yao yang)) hua gene i lei ying sar ;.
• Adding a wildcard symbol may retrieve word variants: (wan or lang) ((((yao ying) or (ran ying))) or (yao yang)) hua gene i lei ying sar ;*.