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

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

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