Perhaps you should try some spelling variations:
hieu nganh » vien nganh, hiem ngan, hieu manh
cua thuong » cua truong, cua phuong, ca thuong
hoc hieu » hoc thieu, hoc hien, doc hieu
anh dang » anh dong, anh dung, anh bang
cua tong » cua cong, cua dong, cua nong
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 nganh - anh dang ((cua tong) or (cua thuong)) cong dan than ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu nganh - anh dang ((cua tong) OR (cua thuong)) cong dan than ban*.