Perhaps you should try some spelling variations:
canh thanh » canh tranh, danh thanh, nhanh thanh
hoc thieu » toc thieu, hoc hien
anh thanh » danh thanh, nhanh thanh, thanh thanh
bang cong » dang cong, bang song, hang cong
ho chieu » theo chieu, doi chieu, mot chieu
san bang » can bang, san sang, gan bang
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cau » toan cau, phan cau, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) or (hoc thieu)) xanh - ((canh thanh) OR (anh thanh)) san bang cong dan than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (hoc thieu)) xanh - ((canh thanh) OR (anh thanh)) san bang cong dan than cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (hoc thieu)) xanh - ((canh thanh) OR (anh thanh)) san bang cong dan than cau*".