Perhaps you should try some spelling variations:
dong yang » dong hoang, dan yang, dong jung
yang yang » wang yan
wang yang » wang yan, wang liang, wang yanling
yang hong » wang hong, yang hongli, quang hong
hua gene » human gene, hua ren, hy5 gene
hong hai » shang hai, zhong tai, dang hai
a gene » a genre, a gender, a gentle

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 yang ((hua gene) OR (a gene)) wang yang hong hai ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "dong yang yang ((hua gene) OR (a gene)) wang yang hong hai ;*".