Perhaps you should try some spelling variations:
yang yao » yang yang, wang yan, yang fan
hua gene » human gene, a gene, hy5 gene
tang min » chang min, sang minh, yang mind
min hong » amin hong, tin hong, min hyoung
hong hai » shang hai, zhong tai, dang hai
yang ka » yang fan
yang yi » yang di, yang xi, yang jui
hua ren » hua chen

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((((yang ka) or (yang yao))) or (yang yi))ng ya ((hua gene) or (hua ren)) tang min hong hai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((yang ka) OR (yang yao))) OR (yang yi))ng ya ((hua gene) OR (hua ren)) tang min hong hai ;.
• Adding a wildcard symbol may retrieve word variants: ((((yang ka) or (yang yao))) or (yang yi))ng ya ((hua gene) or (hua ren)) tang min hong hai ;*.