Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
theo chieu » ho chieu, theo chu, thi chieu
cua thong » cua thuong, cua khong, cua tong
anh tang » anh bang, anh dang, anh nang
tang cua » mang cua, hang cua, tang luan
cong tac » cong ty
quan ban » quang ban, quan van, luan ban
qua ban » cua ban, qua quan

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 (theo tieu)) xanh - anh tang cua thong cong tac ((quan ban) OR (qua ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (theo tieu)) xanh - anh tang cua thong cong tac ((quan ban) OR (qua ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chieu) or (theo tieu)) xanh - anh tang cua thong cong tac ((quan ban) OR (qua ban))".
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (theo tieu)) xanh - anh tang cua thong cong tac ((quan ban) OR (qua ban))*.