Perhaps you should try some spelling variations:
dong thuong » cong thuong, dong thong, dung thuong
chieu sang » chieu sach, chieu xanh, hieu lang
ho chieu » theo chieu, hoc thieu, doi chieu
tranh xa » trinh xa, trach xa, trang xa
dan toan » van toan, manh toan, xuan toan
dan than » dan chan, ban than, van than
xa dong » ha dong, van dong, lao dong

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 sang - canh tranh xa dong thuong ((dan toan) OR (dan than)) cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sang - canh tranh xa dong thuong ((dan toan) OR (dan than)) cao".
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - canh tranh xa dong thuong ((dan toan) OR (dan than)) cao*.