Perhaps you should try some spelling variations:
yang yang » wang yang, wang yan
gene song » gene one
song ming » song bing, song min, gong min
ii human » i human, 3 human, 1 human
cong seo » hong seo, cong shu, von seo
cong van » congo can, duong van
cong sun » cong shu, wing sun
2 human » 3 human

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

• Performing a fuzzy search may retrieve terms with similar spellings: yang yang ((ii human) or (2 human)) gene song ming ((cong seo) or (((cong van) or (cong sun)))) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: yang yang ((ii human) OR (2 human)) gene song ming ((cong seo) OR (((cong van) OR (cong sun)))) ;.
• Adding a wildcard symbol may retrieve word variants: yang yang ((ii human) or (2 human)) gene song ming ((cong seo) or (((cong van) or (cong sun)))) ;*.