Perhaps you should try some spelling variations:
yuan kang » yuan wang, yuan chang, chan kang
chan eng » chan fong, chan kang, chan ming
tan chia » tuan china, than china, can china
chia wen » china won, ching wen, asia wen
wen wang » wei wang, chen wang, weng fang
wong yue » wang yue, hong yu
wang di » yang di, wang d, wang li
di wong » dr wong, kie wong

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((yuan kang) or (chan eng)) tan chia wen wang di wong yue ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((yuan kang) OR (chan eng)) tan chia wen wang di wong yue ;.
• Adding a wildcard symbol may retrieve word variants: ((yuan kang) or (chan eng)) tan chia wen wang di wong yue ;*.