Perhaps you should try some spelling variations:
manh trung » manh tung, thanh trung, manh hung
hieu lang » chieu sang, hieu quang, nhieu tang
hoc thanh » hoc nhanh, hoan thanh, hoc phan
nho hieu » nha hieu, nho sieu, nhu hieu
cong dan » cong san, cong tan, huong dan
toan cau » toan ban, toan tap, toan tai
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: nho hieu lang - manh trung ((thuc hanh) or (hoc thanh)) cong dan ((toan cau) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: nho hieu lang - manh trung ((thuc hanh) OR (hoc thanh)) cong dan ((toan cau) OR (toan cao)).
• Adding a wildcard symbol may retrieve word variants: nho hieu lang - manh trung ((thuc hanh) or (hoc thanh)) cong dan ((toan cau) or (toan cao))*.