Perhaps you should try some spelling variations:
hieu nganh » vien nganh, hiem ngan, hieu manh
thanh tung » thanh cong
cua thong » cua thuong, cua khong, cua tong
cong luan » tong luan, cong tuan, dong luan
luan chat » luan chi, van chat, luan phan
hoc hieu » hoc thieu, hoc hien, doc hieu
chat cao » chat co, chat cho, chat bao

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 nganh - thanh tung ((cua thong) or (cua cong)) cong luan chat cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu nganh - thanh tung ((cua thong) OR (cua cong)) cong luan chat cao.
• Adding a wildcard symbol may retrieve word variants: hoc hieu nganh - thanh tung ((cua thong) or (cua cong)) cong luan chat cao*.