Perhaps you should try some spelling variations:
canh trinh » canh tranh, hanh trinh, anh trinh
nhung cong » dung cong, thong cong, nhung don
hieu xanh » chieu xanh, hieu manh, hieu nganh
canh tinh » hanh tinh, manh tinh, canh tranh
hang cong » dang cong, hang nong, bang cong
doc hieu » toc thieu, hoc thieu, hoc hien
van quan » van ban
quan cap » quan cau, quan lap, quang cao

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 xanh - ((canh trinh) or (canh tinh)) luan ((nhung cong) or (hang cong)) van quan cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu xanh - ((canh trinh) OR (canh tinh)) luan ((nhung cong) OR (hang cong)) van quan cap.
• Adding a wildcard symbol may retrieve word variants: doc hieu xanh - ((canh trinh) or (canh tinh)) luan ((nhung cong) or (hang cong)) van quan cap*.