Perhaps you should try some spelling variations:
theo chieu » theo tieu, theo chu, thi chieu
nhung cong » dung cong, thong cong, hang cong
hanh mang » nhanh mang, hanh trang, nhanh lang
cua nhung » va nhung
ho chieu » hoc thieu, doi chieu, mot chieu
mang cua » manh cua, dung cua, ban cua
cong san » cong tac
toan ban » van ban
toan cao » toan tap

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