Perhaps you should try some spelling variations:
doom using » from using
done using » line using, move using
gene yang » gene bank
dean hong » tan hong, can hong
hua gene » human gene, a gene, hua ren
hong hai » shang hai, zhong tai, dang hai
a hua » ya hua, _ hua, a hra

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doom using) or (done using)) a hua gene yang dean hong hai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doom using) OR (done using)) a hua gene yang dean hong hai ;*.