Perhaps you should try some spelling variations:
human gender » bhutan gender, german gender, human genome
done using » line using, move using
human gene » human genome, human bone, human genetic
using dcs » using dbs, using ddms, using dhcp
tong hui » wang hui
yan jiu » yang jie, yang jin, pang jiu
yang xi » yang di, yang yi, yang jui

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

• Performing a fuzzy search may retrieve terms with similar spellings: done using dcs ((human gene) OR (human gender)) ((yan jiu) or (yang xi)) tong hui ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: done using dcs ((human gene) OR (human gender)) ((yan jiu) OR (yang xi)) tong hui ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "done using dcs ((human gene) OR (human gender)) ((yan jiu) or (yang xi)) tong hui ;*".