Perhaps you should try some spelling variations:
yuhan wang » yan wang, yuhuan huang
change min » chang min, change minor, change may
yuan wang » yan wang, yuan kang, yuan chang
min jeong » kin keong, min hong, mun leong
jeong tai » jeong han, jeong mi, jeong nam
hua when » hua chen, a when, hua wei

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang ((yuhan wang) or (yuan wang)) hua when change min jeong tai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((yuhan wang) OR (yuan wang)) hua when change min jeong tai ;.
• Adding a wildcard symbol may retrieve word variants: wang ((yuhan wang) or (yuan wang)) hua when change min jeong tai ;*.