Perhaps you should try some spelling variations:
hieu nganh » vien nganh, hiem ngan, hieu manh
thanh tung » thanh cong
cua thuong » cua truong, cua phuong, ca thuong
doc hieu » toc thieu, hoc thieu, hoc hien
tung cua » trung cua, tuong cua, dung cua
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
than cap » khan cap, thanh lap, thanh cac

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 nganh - thanh tung cua thuong ((cong dan) OR (cong san)) than cap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc hieu nganh - thanh tung cua thuong ((cong dan) OR (cong san)) than cap*".