Perhaps you should try some spelling variations:
yuan chang » yuan cheng, huang chang, han chang
kang minah » sang minh
chan ming » kian ming, chan eng, chan fong
yan wang » yuan wang, yang yang, qian wang
a region » a regional
wang hui » wang hua, wang zhi, wang wei
a rein » a reine, a reit

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((yan wang) or (yuan chang)) two ((a rein) OR (a region)) ((kang minah) or (chan ming)) wang hui ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((yan wang) OR (yuan chang)) two ((a rein) OR (a region)) ((kang minah) OR (chan ming)) wang hui ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((yan wang) or (yuan chang)) two ((a rein) OR (a region)) ((kang minah) or (chan ming)) wang hui ;*".