Perhaps you should try some spelling variations:
theo chieu » theo tieu, theo chu, thi chieu
nhanh dong » hanh dong, nhanh chong, anh dong
ho chieu » hoc thieu, doi chieu, mot chieu
dong cua » dung cua, cong cua, huong cua
vat cong » bat cong, sat cong, vat con
toan cao » toan ban
toan tap » toan 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: ((ho chieu) OR (theo chieu)) xanh - nhanh dong cua vat cong trinh ((toan cao) OR (toan tap))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) OR (theo chieu)) xanh - nhanh dong cua vat cong trinh ((toan cao) or (toan tap))~".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) OR (theo chieu)) xanh - nhanh dong cua vat cong trinh ((toan cao) or (toan tap))*.