Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
nhung cong » dung cong, thong cong, hang cong
doi chieu » doc hieu, doi chi, ho chieu
cua nhung » va nhung
anh tang » anh bang, anh nang, anh sang
anh dang » anh dong, anh dung, anh bang
cong tan » cong tac, cong san, cong thanh
tan phan » toan phan, than phan, van phan
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: ((theo chieu) or (doi chieu)) tinh - ((anh tang) or (anh dang)) cua nhung cong tan phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (doi chieu)) tinh - ((anh tang) OR (anh dang)) cua nhung cong tan phan cau.
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (doi chieu)) tinh - ((anh tang) or (anh dang)) cua nhung cong tan phan cau*.