Perhaps you should try some spelling variations:
wang yang » wang yan, wang liang, wang yanling
yan human » than human, non human, von human
gene long » gene clone
yang yan » yang yang, wang yan, yang fan
gene one » gene clone, gene gene, gene we
han mung » thanh mung, han heung, han kyung
mung sau » aung san, wong sau

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 yan human ((gene long) or (gene one)) han mung sau ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yang yan human ((gene long) OR (gene one)) han mung sau ;.
• Adding a wildcard symbol may retrieve word variants: wang yang yan human ((gene long) or (gene one)) han mung sau ;*.