Perhaps you should try some spelling variations:
pain yang » pain long, dan yang, daun yang
wang qin » wang lin, wang qiao, wang jing
qin yang » yin yang, qin yaqing, ying yang
yang run » yang jun, yang yun, long run
run pain » run gain
l2 gang » 1.2 gang, 2.2 gang, liu gang
li gang » liu gang, ii gang, i gang
2 gang » 1.2 gang

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang qin yang run pain yang ((2 gang) or (((l2 gang) OR (li gang)))) hai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang qin yang run pain yang ((2 gang) OR (((l2 gang) OR (li gang)))) hai ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang qin yang run pain yang ((2 gang) or (((l2 gang) OR (li gang)))) hai ;*".