Perhaps you should try some spelling variations:
toc chieu » doc hieu, hoc thieu, mot chieu
tranh van » tran van, trinh van, thanh van
dung cong » dung trong
van dung » van dong, xay dung, tin dung
cong dan » cong san, cong tan, huong dan
dan chan » dan gian, dan ca, van chat
chan ban » can ban, chat ban, chan nan

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

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