Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
doi chieu » doc hieu, doi chi, ho chieu
trinh cua » trinh luat, trinh quan, trinh luan
tinh cua » sinh cua, tinh chat, tranh cua
cong tac » cong ty
tac tran » tan tran, tac trai, tac tren
tran cao » toan cao, tran chau, trang cho

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((lai chau) or (doi chieu)) tinh - hanh ((trinh cua) OR (tinh cua)) thong cong tac tran cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((lai chau) OR (doi chieu)) tinh - hanh ((trinh cua) OR (tinh cua)) thong cong tac tran cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((lai chau) or (doi chieu)) tinh - hanh ((trinh cua) OR (tinh cua)) thong cong tac tran cao".
• Adding a wildcard symbol may retrieve word variants: ((lai chau) or (doi chieu)) tinh - hanh ((trinh cua) OR (tinh cua)) thong cong tac tran cao*.