Perhaps you should try some spelling variations:
ying yang » yin yang, ying chang, wang yang
yang yang » wang yang, wang yan
liang tan » liang dan, liang sun
hua gene » human gene, a gene, hua ren
wing tan » wing ian, hong tan, tin tan
yang jin » yang jie, yang jun, ying jin
sar » sara, star, saur

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

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