Perhaps you should try some spelling variations:
mot chieu » ho chieu
doi chieu » doc hieu, doi chi, ho chieu
hanh hinh » hanh chinh, hanh tinh, hanh dinh
va huong » va thuong, va phuong, va tuong
cong dan » cong san, cong tan, huong dan
va dung » van dung, va duong, vat dung
dan van » dang van, doan van, dao van

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((mot chieu) or (doi chieu)) xanh - hanh hinh ((va dung) or (va huong)) cong dan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((mot chieu) OR (doi chieu)) xanh - hanh hinh ((va dung) OR (va huong)) cong dan van ban.
• Adding a wildcard symbol may retrieve word variants: ((mot chieu) or (doi chieu)) xanh - hanh hinh ((va dung) or (va huong)) cong dan van ban*.