Perhaps you should try some spelling variations:
human gene » human genome, human gender, human bone
dong wang » dong yang, dong hoang, dong jung
hong wang » hong gang, hong kong, hong jong
hua gene » a gene, hy5 gene
thi hong » tan hong
hua ren » hua chen
yan thi » yan zhi, tran thi, dang thi
hong yu » wong yue

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((dong wang) or (hong wang)) yan ((((hua gene) OR (hua ren))) or (human gene)) yan thi hong yu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((dong wang) OR (hong wang)) yan ((((hua gene) OR (hua ren))) OR (human gene)) yan thi hong yu ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((dong wang) or (hong wang)) yan ((((hua gene) OR (hua ren))) or (human gene)) yan thi hong yu ;*".