Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
thanh mung » thanh tung, thanh hung, thanh dung
doi chieu » doc hieu, doi chi, ho chieu
khoa dung » hoc dung, khoa cong
tan khang » van khang, tao khang, tinh khang
khang cau » hang cau, khang cu, khang chan
kha dung » khao dung, nha dung, khoan dung
cong tan » cong tac, cong san, cong thanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo chieu) or (doi chieu)) xanh - thanh mung ((kha dung) OR (khoa dung)) cong tan khang cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (doi chieu)) xanh - thanh mung ((kha dung) OR (khoa dung)) cong tan khang cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chieu) or (doi chieu)) xanh - thanh mung ((kha dung) OR (khoa dung)) cong tan khang cau".
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (doi chieu)) xanh - thanh mung ((kha dung) OR (khoa dung)) cong tan khang cau*.