Perhaps you should try some spelling variations:
canh tran » canh tranh, hanh trang, banh trang
dung cong » dung trong
ho chieu » theo chieu, hoc thieu, doi chieu
tran van » luan van
van dung » van dong, xay dung, tin dung
dan than » dan chan, ban than, dan toan
van than » van thanh, van thang, van tuan

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