Perhaps you should try some spelling variations:
dong yang » dong hoang, dan yang, dong jung
wang yang » wang yan, wang liang, wang yanling
yang yang » wang yan
yang amin » yang lin, yang mind
hua gene » human gene, a gene, hua ren
yang jin » yang jie, yang jun, ying jin
hong zhi » zhong zhi, hong ghi, zhang zhi
yi hua » li hua, ya hua, yi hui

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((((dong yang) or (wang yang))) or (yang yang)) yi hua gene ((yang amin) OR (yang jin)) hong zhi ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((dong yang) OR (wang yang))) OR (yang yang)) yi hua gene ((yang amin) OR (yang jin)) hong zhi ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((dong yang) or (wang yang))) or (yang yang)) yi hua gene ((yang amin) OR (yang jin)) hong zhi ;".
• Adding a wildcard symbol may retrieve word variants: ((((dong yang) or (wang yang))) or (yang yang)) yi hua gene ((yang amin) OR (yang jin)) hong zhi ;*.