Perhaps you should try some spelling variations:
wang yang » wang yan, wang liang, wang yanling
sang minh » kang minah, anh minh, song min
chai tan » chai tam, chai onn
tan sang » tan yang, tang tang, tan hong
chang ha » chang mae
yang ka » yang fan, yang yao
ka chai » ka chuan, kim chai

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yang ka chai tan sang minh ((dang hai) or (chang ha)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yang ka chai tan sang minh ((dang hai) OR (chang ha)) ;*.