Perhaps you should try some spelling variations:
shang hai » shang kai, dang hai, chang ha
yang rao » yang yao, yang ka
yang fan » zhang fan, yang dean, yang yang
yang min » yang mind, tang min, yang lin
yang jin » yang jie, yang jun, ying jin
hong ng » hong kong, hong jong, hong hong
p gene » _ gene, a gene, e gene

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

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