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
doc hieu » toc thieu, hoc thieu, hoc hien
than cau » toan cau, phan cau, thanh chau
than cap » khan cap, thanh lap, thanh cac

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 (than cap))~.
• 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 (than cap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc hieu manh - tinh bang luan ((hung cong) OR (nhung cong)) sang ((than cau) or (than cap))".
• Adding a wildcard symbol may retrieve word variants: doc hieu manh - tinh bang luan ((hung cong) OR (nhung cong)) sang ((than cau) or (than cap))*.