Perhaps you should try some spelling variations:
doi chieu » doc hieu, doi chi, ho chieu
tao thong » tao trong, giao thong, toan thong
cong tao » cong tac, cong tan, cong bao
dan than » ban than, van than, dan toan
dan chan » dan gian, dan ca, van chat
dong » dung
trieu » thieu, trien, tieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doi chieu) or (dong trieu)) tinh - thanh cong tao thong thong ((dan than) OR (dan chan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (dong trieu)) tinh - thanh cong tao thong thong ((dan than) OR (dan chan)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi chieu) or (dong trieu)) tinh - thanh cong tao thong thong ((dan than) OR (dan chan)) cau".
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (dong trieu)) tinh - thanh cong tao thong thong ((dan than) OR (dan chan)) cau*.