Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
thanh tung » thanh cong
cong thanh » dong thanh, cong trinh, truong thanh
cua thong » cua thuong, cua khong, cua tong
khoan cam » khoa cam, khoan va, phan cam
ho chieu » theo chieu, hoc thieu, doi chieu
tung cua » trung cua, tuong cua, dung cua
cong tan » cong tac, cong san, cong ty
than cap » khan cap, thanh lap, thanh cac

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: ho chieu tinh - thanh tung cua thong ((cong tan) OR (cong thanh)) ((than cap) OR (khoan cam))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu tinh - thanh tung cua thong ((cong tan) OR (cong thanh)) ((than cap) or (khoan cam))~".
• Adding a wildcard symbol may retrieve word variants: ho chieu tinh - thanh tung cua thong ((cong tan) OR (cong thanh)) ((than cap) or (khoan cam))*.