Perhaps you should try some spelling variations:
yan jianping » zhao jianping, yu jianxing
yan yanling » wang yanling
gene sang » lee sang, gene bank
zhong tai » hong tan, zhong zhi
hua gene » human gene, a gene, hua ren
sang min » sang minh, song min, tang min
hong hai » shang hai, dang hai, hong tan

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

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