Perhaps you should try some spelling variations:
thanh phuong » thanh huong, thanh chuong, khanh phong
hoc thieu » toc thieu, hoc hien
doc hieu » toc thieu, hoc hien
mai dung » mai huong, manh dung, ap dung
mai hung » manh hung, van hung
cong tac » cong ty
tac van » tac vang, cac van, tac va

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doc hieu) or (hoc thieu)) manh - thanh phuong ((mai dung) OR (mai hung)) cong tac van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc hieu) OR (hoc thieu)) manh - thanh phuong ((mai dung) OR (mai hung)) cong tac van ban*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doc hieu) or (hoc thieu)) manh - thanh phuong ((mai dung) OR (mai hung)) cong tac van ban*".