Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hoc thieu » toc thieu, hoc hien
hanh tang » hanh trang, anh tang, hanh mang
dung cong » dung trong
hoc hieu » hoc hien, doc hieu, hoc dieu
qua dung » quang dung, su dung, qua song
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: ((hoc hieu) or (hoc thieu)) lang - ((hanh tang) or (hanh trinh)) qua dung cong dan than ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc hieu) OR (hoc thieu)) lang - ((hanh tang) OR (hanh trinh)) qua dung cong dan than ban.
• Adding a wildcard symbol may retrieve word variants: ((hoc hieu) or (hoc thieu)) lang - ((hanh tang) or (hanh trinh)) qua dung cong dan than ban*.