Perhaps you should try some spelling variations:
wang yidan » wang yan
yidan yang » dan yang, yin yang
chin chang » china chang, chain change, china zhang
chin fang » china wang, china yang, cai fang
daun yang » dan yang, du yang, tan yang
yang jun » yang jui, pang jun, yang jin
yi chang » ii chang, ying chang, jin chang

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yidan yang jun ((chin fang) or (daun yang)) ((yi chang) or (chin chang)) hai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yidan yang jun ((chin fang) OR (daun yang)) ((yi chang) OR (chin chang)) hai ;.
• Adding a wildcard symbol may retrieve word variants: wang yidan yang jun ((chin fang) or (daun yang)) ((yi chang) or (chin chang)) hai ;*.