Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong trinh, truong thanh
thi chien » thi hien, thi thien, thien chien
anh dang » anh dong, anh dung, anh bang
dang cua » dung cua, dong cua, mang cua
cua dung » cua dang, cua dong, qua dung
cong tan » cong tac, cong san, cong ty
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thi chien) or (theo tieu)) xanh - anh dang cua dung ((cong thanh) OR (cong tan)) toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thi chien) OR (theo tieu)) xanh - anh dang cua dung ((cong thanh) OR (cong tan)) toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thi chien) or (theo tieu)) xanh - anh dang cua dung ((cong thanh) OR (cong tan)) toan tap".
• Adding a wildcard symbol may retrieve word variants: ((thi chien) or (theo tieu)) xanh - anh dang cua dung ((cong thanh) OR (cong tan)) toan tap*.