Perhaps you should try some spelling variations:
khach sang » khach hang, khach san, khach cong
cua khach » cua thanh, nha khach
thuat lap » thuat lanh, thuat xay, thuat bai
cao khai » cao chat, cao tai, dao khau
lap ngan » lap nganh, lai ngan, luat ngan
cao thi » cau thi, cao tai, dao thi
ngan co » nganh co, ngon co, nhan co

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: (( cua khach sang ((cao khai) OR (cao thi)) đong luc ) OR ( thuat lap ngan co khi đong luc ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( cua khach sang ((cao khai) OR (cao thi)) đong luc ) or ( thuat lap ngan co khi đong luc ))~".
• Adding a wildcard symbol may retrieve word variants: (( cua khach sang ((cao khai) OR (cao thi)) đong luc ) or ( thuat lap ngan co khi đong luc ))*.