Perhaps you should try some spelling variations:
sang minh » kang minah, anh minh, song min
tan yang » dan yang, tan ying, tan yong
chai tan » chai tam, chai onn
tan sang » tang tang, tan hong, tan kong
hong hai » shang hai, zhong tai, hong tan
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.

• If you are trying to use Boolean operators, they must be ALL CAPS: tan yang ka chai tan sang minh ((hong hai) OR (dang hai)) ;~.
• Adding a wildcard symbol may retrieve word variants: tan yang ka chai tan sang minh ((hong hai) or (dang hai)) ;*.