Perhaps you should try some spelling variations:
phuong tran » huong tran, phuong trinh, phuong thao
theo chieu » theo tieu, ho chieu, theo chu
hanh dong » anh dong, ha dong
cua thong » cua thuong, cua khong, suat thong
tran than » tran thanh, tran thang, tran tuan
doc hieu » toc thieu, hoc thieu, hoc hien
cua tong » cua cong, cua dong, cua nong
than cap » khan cap, thanh lap, thanh cac

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 (doc hieu)) tinh - hanh dong ((cua thong) OR (cua tong)) phuong tran than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (doc hieu)) tinh - hanh dong ((cua thong) OR (cua tong)) phuong tran than cap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chieu) or (doc hieu)) tinh - hanh dong ((cua thong) OR (cua tong)) phuong tran than cap".
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (doc hieu)) tinh - hanh dong ((cua thong) OR (cua tong)) phuong tran than cap*.