Perhaps you should try some spelling variations:
canh tinh » hanh tinh, manh tinh, canh tranh
dung cong » dung trong
hoc hieu » hoc thieu, doc hieu, hoc dieu
tinh xay » trinh xay, tinh tay, trinh xac
cong dan » cong san, cong tan, huong dan
dan phan » doan phan, dan chan, 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) or (hoc hien)) nganh - canh tinh xay dung cong dan phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc hieu) OR (hoc hien)) nganh - canh tinh xay dung cong dan phan cau.
• Adding a wildcard symbol may retrieve word variants: ((hoc hieu) or (hoc hien)) nganh - canh tinh xay dung cong dan phan cau*.