Perhaps you should try some spelling variations:
a changed » _ changed, a change, has changed
jie zhang » jia zhang, li zhang, bin zhang
zhang kai » zhang dai, shang kai, zhang fan
iii gene » iii rene, iii gender, iii genome
yang jie » yang jin, yang di, yang jui
lang a » lang 3, lang _, erlang a
a gene » a genre, a gender, a gentle

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: lang a changed ((iii gene) OR (a gene)) yang jie zhang kai ;~.
• Adding a wildcard symbol may retrieve word variants: lang a changed ((iii gene) or (a gene)) yang jie zhang kai ;*.