Perhaps you should try some spelling variations:
chuyen dong » huyen dong, chuyen dung, chuyen doi
theo chieu » theo tieu, ho chieu, theo chu
phan dong » phan cong, phan hong, phan song
phan dang » phan dau, phan cong, nhan dan
dong cong » duong cong, dung cong, dang cong
doc hieu » toc thieu, hoc thieu, hoc hien
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than ban » thanh ban, toan ban, than man

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 (theo chieu)) lang - ((phan dong) or (phan dang)) chuyen dong cong dan than ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc hieu) OR (theo chieu)) lang - ((phan dong) OR (phan dang)) chuyen dong cong dan than ban.
• Adding a wildcard symbol may retrieve word variants: ((doc hieu) or (theo chieu)) lang - ((phan dong) or (phan dang)) chuyen dong cong dan than ban*.