Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hieu manh » chieu xanh, hieu nganh, dieu hanh
tinh bang » tinh sang, tinh lang, tinh quang
bang luan » tang luan, hang luan, dung luan
hung cong » hung cuong, phung cong, dung cong
thanh cac » hanh cac, thanh bac, thanh ca
doc hieu » toc thieu, hoc thieu, hoc hien
than cau » toan cau, phan cau, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc hieu manh - tinh bang luan ((hung cong) or (nhung cong)) sang ((than cau) or (thanh cac))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu manh - tinh bang luan ((hung cong) OR (nhung cong)) sang ((than cau) OR (thanh cac)).
• Adding a wildcard symbol may retrieve word variants: doc hieu manh - tinh bang luan ((hung cong) or (nhung cong)) sang ((than cau) or (thanh cac))*.