Perhaps you should try some spelling variations:
kang minah » sang minh
human gene » human genome, human gender, human bone
yang yang » wang yang, wang yan
hua gene » a gene, hua ren, hy5 gene
song min » song ming, gong min, jong min
cong van » congo can, duong van, cong sun
yang ya » yang yao, yang yi, yang ka

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 (human gene)) ((song min) or (kang minah)) ((cong shu) or (cong van)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: yang yang ya ((hua gene) OR (human gene)) ((song min) OR (kang minah)) ((cong shu) OR (cong van)) ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "yang yang ya ((hua gene) OR (human gene)) ((song min) or (kang minah)) ((cong shu) or (cong van)) ;".
• Adding a wildcard symbol may retrieve word variants: yang yang ya ((hua gene) OR (human gene)) ((song min) or (kang minah)) ((cong shu) or (cong van)) ;*.