Perhaps you should try some spelling variations:
theo chieu » theo tieu, theo chu, thi chieu
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh cua » doanh cua, manh cua
cua nhung » va nhung
doan dieu » nhan dieu, dang dieu, toan dien
ho chieu » hoc thieu, doi chieu, mot chieu
tong tap » tuong tac, trong tan, cong tac
cong tan » cong tac, cong san, cong thanh

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 (ho chieu)) xanh - hanh tranh cua nhung ((tong tap) or (cong tan)) doan dieu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (ho chieu)) xanh - hanh tranh cua nhung ((tong tap) OR (cong tan)) doan dieu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chieu) OR (ho chieu)) xanh - hanh tranh cua nhung ((tong tap) or (cong tan)) doan dieu".
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) OR (ho chieu)) xanh - hanh tranh cua nhung ((tong tap) or (cong tan)) doan dieu*.