Perhaps you should try some spelling variations:
ran yirong » ran ying
kong saur » kong sar, kong siu, kong your
ying hua » ming hua, wang hua, ying zhu
hua gene » human gene, a gene, hua ren
ying tan » wing tan, liang tan, ying bank
yang jin » yang jie, yang jun, shang jin
ying jin » jing ji, yang jie

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "ran yirong ying hua gene ((ying tan) OR (((yang jin) OR (ying jin)))) kong saur ;~".
• Adding a wildcard symbol may retrieve word variants: ran yirong ying hua gene ((ying tan) OR (((yang jin) OR (ying jin)))) kong saur ;*.