Perhaps you should try some spelling variations:
liang tan » liang dan, liang sun, wing tan
huang tao » huang xiao, wang tao, huang wentao
hua gene » human gene, hua ren, hy5 gene
yang jun » yang jui, pang jun, yang jin
hong shu » cong shu, tong shui, wong shiu
yan jiu » yang jie, yang jin, pang jiu
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: done ((liang tan) or (huang tao)) ((hua gene) OR (a gene)) ((yan jiu) or (yang jun)) hong shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: done ((liang tan) OR (huang tao)) ((hua gene) OR (a gene)) ((yan jiu) OR (yang jun)) hong shu ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "done ((liang tan) or (huang tao)) ((hua gene) OR (a gene)) ((yan jiu) or (yang jun)) hong shu ;".
• Adding a wildcard symbol may retrieve word variants: done ((liang tan) or (huang tao)) ((hua gene) OR (a gene)) ((yan jiu) or (yang jun)) hong shu ;*.