Perhaps you should try some spelling variations:
done using » line using, move using
using ya » using a, using _, using 4d
hua gene » human gene, a gene, hua ren
gene yan » gene bank, ren yan, see yan
hong shu » cong shu, tong shui, wong shiu
hong ghi » zhong zhi, hong g, hong hai
yan tan » tan tan, yan clan, yan guan

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "done using ya hua gene yan tan ((hong shu) OR (hong ghi)) ;~".
• Adding a wildcard symbol may retrieve word variants: done using ya hua gene yan tan ((hong shu) OR (hong ghi)) ;*.