Perhaps you should try some spelling variations:
yan change » can change, mean change, man changed
gene yang » gene bank
shang hai » shang kai, chang ha, zhang han
yang min » yang mind, yang jin, tang min
hong hai » zhong tai, hong tan, hong a
a gene » a genre, a gender, a gentle
wang » wing, wan, lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yan change a gene yang min ((hong hai) or (((shang hai) OR (dang hai)))) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yan change a gene yang min ((hong hai) OR (((shang hai) OR (dang hai)))) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yan change a gene yang min ((hong hai) or (((shang hai) OR (dang hai)))) ;*".