Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
trong tac » trong cac, trong tan, trong tuc
tuong tac » cong tac, luong tai, tuong lai
theo chu » theo chieu, cho chu, chao chu
chu manh » ho manh, chu han, chu van
cong san » cong tac
tran cau » tran chau, toan cau, tra cau
ran cau » van cau, ban cau, can cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chu manh - hanh ((trong tac) or (tuong tac)) thong cong san ((tran cau) OR (ran cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu manh - hanh ((trong tac) OR (tuong tac)) thong cong san ((tran cau) OR (ran cau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chu manh - hanh ((trong tac) or (tuong tac)) thong cong san ((tran cau) OR (ran cau))".
• Adding a wildcard symbol may retrieve word variants: theo chu manh - hanh ((trong tac) or (tuong tac)) thong cong san ((tran cau) OR (ran cau))*.