Perhaps you should try some spelling variations:
yang yang » wang yang, wang yan
gene gene » gene meme, one gene
one small » some small
gene one » gene clone, gene we, see one
none one » note one, money one, phone one
yan yan » yan yuan, nan yan, wang yan
tan one » than one, can one, man one
wang » wing, wan, lang

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

• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((yan yan) OR (yang yang)) a ((((gene one) OR (none one))) OR (gene gene)) tan one small ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((yan yan) or (yang yang)) a ((((gene one) OR (none one))) or (gene gene)) tan one small ;~".
• Adding a wildcard symbol may retrieve word variants: wang ((yan yan) or (yang yang)) a ((((gene one) OR (none one))) or (gene gene)) tan one small ;*.