Perhaps you should try some spelling variations:
yuan chang » yuan cheng, huang chang, han chang
wang yang » wang yan, wang liang, wang yanling
wang ping » wang jing, wang ning, wang peng
tan chia » tuan china, than china, can china
tuan hua » tuan vu, yuan hui
wen wang » wei wang, chen wang, weng fang
pong yan » dong yang, wang yan, kong yam
tan hua » wang hua, tan puay

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((yuan chang) or (wang yang)) ((((tan hua) OR (tan chia))) or (tuan hua)) wen wang ping pong yan ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((yuan chang) OR (wang yang)) ((((tan hua) OR (tan chia))) OR (tuan hua)) wen wang ping pong yan ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((yuan chang) or (wang yang)) ((((tan hua) OR (tan chia))) or (tuan hua)) wen wang ping pong yan ;".
• Adding a wildcard symbol may retrieve word variants: ((yuan chang) or (wang yang)) ((((tan hua) OR (tan chia))) or (tuan hua)) wen wang ping pong yan ;*.