Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
manh trung » thanh trung, manh hung, sinh trung
nhung cong » dung cong, thong cong, hang cong
hoc chieu » hoc thieu, ho chieu, hoc hien
manh tung » manh hung, thanh tung
cua nhung » va nhung
cong tac » cong ty
toan cau » toan cao, toan ban, toan tai
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: hoc chieu tinh - ((manh trung) OR (manh tung)) cua nhung cong tac ((toan cau) OR (toan tap))~.
• Adding a wildcard symbol may retrieve word variants: hoc chieu tinh - ((manh trung) or (manh tung)) cua nhung cong tac ((toan cau) or (toan tap))*.