Perhaps you should try some spelling variations:
yang yang » wang yang, wang yan
tong shui » tong hui, cong shu, gong hui
hua gene » human gene, hua ren, hy5 gene
tang min » chang min, sang minh, yang mind
yang jie » yang jin, yang di, yang jui
hong shu » cong shu, wong shiu, hong seo
yang ya » yang yao, yang yi, yang ka
a gene » a genre, a gender, a gentle

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 ya ((hua gene) or (a gene)) ((tang min) or (yang jie)) ((hong shu) OR (tong shui)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: yang yang ya ((hua gene) OR (a gene)) ((tang min) OR (yang jie)) ((hong shu) OR (tong shui)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "yang yang ya ((hua gene) or (a gene)) ((tang min) or (yang jie)) ((hong shu) OR (tong shui)) ;*".