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, hua ren, hy5 gene
dang thi » dang hai
yan thi » yan zhi, tran thi, nhan 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 (human gene)) ((yan thi) OR (dang 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 (human gene)) ((yan thi) OR (dang 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 (human gene)) ((yan thi) OR (dang thi)) hong yu ;*".