Perhaps you should try some spelling variations:
khach sang » khach hang, khach cong, khai sang
nhung cong » dung cong, thong cong, hang cong
khach san » khach hang, thanh san
bang song » nang song
chi sang » chi lang, chieu sang, chi chang
dan than » dan chan, ban than, van than
than cap » khan cap, thanh lap, thanh cac
doi chi » doi khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chi sang - ((khach sang) or (khach san)) va ((nhung cong) or (bang song)) dan than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi sang - ((khach sang) OR (khach san)) va ((nhung cong) OR (bang song)) dan than cap.
• Adding a wildcard symbol may retrieve word variants: doi chi sang - ((khach sang) or (khach san)) va ((nhung cong) or (bang song)) dan than cap*.