Perhaps you should try some spelling variations:
theo chieu » theo tieu, theo chu, thi chieu
trung cap » truong cao, trung tam
dung cong » dung trong
ho chieu » hoc thieu, doi chieu, mot chieu
tang cua » mang cua, hang cua, tang luan
cong tac » cong ty
tac phan » tac pham, tai phan, tac phat
phan cau » phan dau, phan cac, phan tu

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)) tinh - hanh ((trung cap) or (tang cua)) dung cong tac phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (theo chieu)) tinh - hanh ((trung cap) OR (tang cua)) dung cong tac phan cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) OR (theo chieu)) tinh - hanh ((trung cap) or (tang cua)) dung cong tac phan cau*".