Perhaps you should try some spelling variations:
tranh luat » trinh luat, tranh luan, trinh luan
nhung cong » dung cong, thong cong, hang cong
hieu manh » chieu xanh, hieu nganh, dieu hanh
bang cong » dang cong, bang song, hang cong
van thang » van thanh, van khang, van hang
doc hieu » toc thieu, hoc thieu, hoc hien

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 - canh tranh luat ((nhung cong) or (bang cong)) ((van thang) or (van ban)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu manh - canh tranh luat ((nhung cong) OR (bang cong)) ((van thang) OR (van ban)) cau.
• Adding a wildcard symbol may retrieve word variants: doc hieu manh - canh tranh luat ((nhung cong) or (bang cong)) ((van thang) or (van ban)) cau*.