Perhaps you should try some spelling variations:
wang yidan » wang yan
wang yuhan » wang luhang, wang yan, fang yuan
kang yuan » fang yuan, kang susan, wang yan
tan yang » dan yang, tan yong, tao yang
tan ying » fan ying, ran ying, tan yong
gang hai » dang hai, shang hai, eang hay
li gang » liu gang, ii gang, i 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 ((kang yuan) or (((wang yuhan) OR (wang yidan)))) hui ((tan yang) or (tan ying)) li gang hai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((kang yuan) OR (((wang yuhan) OR (wang yidan)))) hui ((tan yang) OR (tan ying)) li gang hai ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((kang yuan) or (((wang yuhan) OR (wang yidan)))) hui ((tan yang) or (tan ying)) li gang hai ;".
• Adding a wildcard symbol may retrieve word variants: wang ((kang yuan) or (((wang yuhan) OR (wang yidan)))) hui ((tan yang) or (tan ying)) li gang hai ;*.