Perhaps you should try some spelling variations:
thanh trung » thanh tung
hieu lang » chieu sang, hieu quang, nhieu tang
cong manh » cong danh, duong manh, cong thanh
manh toan » thanh toan, anh tuan, tinh toan
nho hieu » nha hieu, nho sieu, nhu hieu
hoc hanh » hoc nhanh, hoc thanh, hoc anh
toan ban » van ban
hoc han » hoc phan, hoc chan, hoc hang

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 - thanh trung ((hoc han) or (hoc hanh)) cong manh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: nho hieu lang - thanh trung ((hoc han) OR (hoc hanh)) cong manh toan ban.
• Adding a wildcard symbol may retrieve word variants: nho hieu lang - thanh trung ((hoc han) or (hoc hanh)) cong manh toan ban*.