Perhaps you should try some spelling variations:
hieu nganh » vien nganh, hiem ngan, hieu manh
hanh trang » thanh trung, canh tranh, hanh trinh
trang cua » tranh cua, tang cua, trung cua
cua nhung » va nhung
hoc hieu » hoc thieu, hoc hien, doc hieu
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
toan cao » toan tap
toan ban » van ban

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 nganh - hanh trang cua nhung ((cong dan) OR (cong tan)) ((toan cao) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu nganh - hanh trang cua nhung ((cong dan) OR (cong tan)) ((toan cao) OR (toan ban))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hieu nganh - hanh trang cua nhung ((cong dan) OR (cong tan)) ((toan cao) or (toan ban))*".