Perhaps you should try some spelling variations:
theo chieu » theo tieu, theo chu, thi chieu
nhanh tinh » nhanh thanh, hanh trinh, nhan sinh
tong cong » cong cong, dung cong, dang cong
ho chieu » hoc thieu, doi chieu, mot chieu
tinh cua » trinh cua, sinh cua, tinh chat
dan than » dan chan, ban than, van than
than cao » toan cao, thai cao, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) OR (theo chieu)) xanh - nhanh tinh cua ((tong cong) or (trong cong)) dan than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (theo chieu)) xanh - nhanh tinh cua ((tong cong) OR (trong cong)) dan than cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) OR (theo chieu)) xanh - nhanh tinh cua ((tong cong) or (trong cong)) dan than cao".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) OR (theo chieu)) xanh - nhanh tinh cua ((tong cong) or (trong cong)) dan than cao*.