Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
nhung cong » dung cong, thong cong, hang cong
hieu manh » chieu xanh, hieu nganh, dieu hanh
hanh tung » thanh tung, manh tung, hanh dung
cua nhung » va nhung
anh tang » anh bang, anh dang, anh nang
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: hoc ((hieu manh) or (chieu tinh)) - ((hanh tung) or (anh tang)) cua nhung cong tan phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu manh) OR (chieu tinh)) - ((hanh tung) OR (anh tang)) cua nhung cong tan phan cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu manh) or (chieu tinh)) - ((hanh tung) or (anh tang)) cua nhung cong tan phan cau*.