Perhaps you should try some spelling variations:
sang minh » kang minah, anh minh, song min
shang hai » dang hai, chang ha, hong hai
chai tan » chai tam, chai onn
tan sang » tan yang, tang tang, tan hong
wan yan » wang yan, nan yan, wai yan
ka chai » ka chuan, kim chai
yan ka » yang ka, yuan kai

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

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