Perhaps you should try some spelling variations:
tcanh tranh » thanh thanh, can tranh, lanh tranh
nhung cong » dung cong, thong cong, hang cong
doi chieu » doc hieu, doi chi, mot chieu
van nhung » van nhuong, va nhung, van hung
ho chieu » theo chieu, hoc thieu, mot chieu
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than ban » thanh ban, toan ban, than man

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (ho chieu)) xanh - ((canh tranh) OR (tcanh tranh)) van nhung cong dan than ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi chieu) OR (ho chieu)) xanh - ((canh tranh) or (tcanh tranh)) van nhung cong dan than ban~".
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) OR (ho chieu)) xanh - ((canh tranh) or (tcanh tranh)) van nhung cong dan than ban*.