Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, thi chieu
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
cuong tap » luong tap, cong tac, luong tai
theo chu » cho chu, chao chu, theo yeu
tinh cua » trinh cua, sinh cua, tinh chat
cua dung » cua dang, cua dong, qua dung
cong tap » cong tac, cong tan, tong tap
toan ban » van ban

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: ((theo chieu) OR (theo chu)) xanh - hanh tinh cua dung ((cong tap) OR (cuong tap)) toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chieu) or (theo chu)) xanh - hanh tinh cua dung ((cong tap) OR (cuong tap)) toan ban~".
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (theo chu)) xanh - hanh tinh cua dung ((cong tap) OR (cuong tap)) toan ban*.