Perhaps you should try some spelling variations:
canh thanh » canh tranh, danh thanh, anh thanh
dung chung » dung cong, dung ung, dung trung
hoc thieu » hoc hien
thanh van » thanh san, thanh toan, thanh phan
chung dan » chung han, hung dan, chung nhan
van dung » van dong, xay dung, tin dung
dan van » dang van, doan van, dao van

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((toc thieu) or (hoc thieu)) xanh - canh thanh van dung chung dan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((toc thieu) OR (hoc thieu)) xanh - canh thanh van dung chung dan van ban*.