Perhaps you should try some spelling variations:
yang jing » wang jing, huang jing, yang liang
yang jin » yang jie, yang jun, ying jin
gene one » gene clone, gene gene, gene we
only see » only set, only here, only sent
only way » only a
yan jiu » yang jie, pang jiu
one can » one can't, one case, line can
a gene » a genre, a gender, a gentle

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

• If you are trying to use Boolean operators, they must be ALL CAPS: wan ((((yan jiu) OR (yang jing))) OR (yang jin)) a gene one can ((only see) OR (only way)) ;~.
• Adding a wildcard symbol may retrieve word variants: wan ((((yan jiu) or (yang jing))) or (yang jin)) a gene one can ((only see) or (only way)) ;*.