Perhaps you should try some spelling variations:
hieu nganh » vien nganh, hiem ngan, hieu manh
thong cua » thong quan, thong tu, huong cua
tang luan » dung luan
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 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 ((thong cua) or (tang luan)) thong ((cong dan) or (cong tan)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu nganh - hanh ((thong cua) OR (tang luan)) thong ((cong dan) OR (cong tan)) toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc hieu nganh - hanh ((thong cua) or (tang luan)) thong ((cong dan) or (cong tan)) toan ban*.