Perhaps you should try some spelling variations:
cheng zhang » cheng han, zhen zhang, chen zheng
gene gene » gene meme, gene one, one gene
zhang wei » zhen wei
kong lyn » kong land, kong lee
ding 2.3 » dinge 2.3, doing 2.3, ring 2.3
gene get » gene set, gene sets, done get
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 ((kong lyn) OR (ding 2.3)) ((gene get) OR (gene gene)) cheng zhang wei ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yan ((kong lyn) or (ding 2.3)) ((gene get) OR (gene gene)) cheng zhang wei ;~".
• Adding a wildcard symbol may retrieve word variants: wang yan ((kong lyn) or (ding 2.3)) ((gene get) OR (gene gene)) cheng zhang wei ;*.