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
trinh han » trinh quan
cua nhung » va nhung
cong tac » cong ty
toan cau » toan cao, toan tap, toan tai
toan ban » van ban
han cua » hang cua, nhan cua, than cua

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((hieu manh) or (chieu tinh)) - trinh han cua nhung cong tac ((toan cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((hieu manh) OR (chieu tinh)) - trinh han cua nhung cong tac ((toan cau) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: theo ((hieu manh) or (chieu tinh)) - trinh han cua nhung cong tac ((toan cau) or (toan ban))*.