Perhaps you should try some spelling variations:
tcanh tranh » thanh thanh, can tranh, lanh tranh
chieu xanh » chieu sach, chieu sang, chieu tinh
nhung cong » dung cong, thong cong, nhung don
doi chieu » doc hieu, doi chi, ho chieu
hang cong » dang cong, hang nong, bang cong
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 xanh - ((canh tranh) OR (tcanh tranh)) van ((nhung cong) OR (hang cong)) dan than ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu xanh - ((canh tranh) or (tcanh tranh)) van ((nhung cong) OR (hang cong)) dan than ban~".
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - ((canh tranh) or (tcanh tranh)) van ((nhung cong) OR (hang cong)) dan than ban*.