Perhaps you should try some spelling variations:
yan yang » yang yang, yao yang, tan yang
yin yang » ying yang, yi yang, yin hang
yin fang » yin hang, chin fang, jing fang
dan yang » daun yang, tan yang, wang yang
gang jun » pang jun, yang jun, wang jun
wan yan » wang yan, nan yan, wai yan
yu gang » xu gang, yi gang, yu fang

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

• Performing a fuzzy search may retrieve terms with similar spellings: wan yan yang di ((((yin yang) or (yin fang))) or (dan yang)) yu gang jun ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wan yan yang di ((((yin yang) OR (yin fang))) OR (dan yang)) yu gang jun ;*.