Perhaps you should try some spelling variations:
human gene » human genome, human gender, human bone
yang yang » wang yang, wang yan
sang minh » kang minah, anh minh, song min
hua gene » a gene, hua ren, hy5 gene
cong seo » cong shu, cong sun, von seo
yang ya » yang yao, yang yi, yang ka
hong » long

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