Perhaps you should try some spelling variations:
thien hach » thien thanh, hien hanh
hoc thien » hoc hien, hoc thieu, hoc thiet
thoai cac » tai cac, thong cac, tho cac
anh dung » anh dong, anh huong, sach dung
dung cua » dung luan, dung cho
cua dang » cua cong, cua ban
cong dan » cong tan, huong dan, cong dong
cong san » cong tac

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thien hach - anh dung cua dang ((cong dan) or (cong san)) thoai cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thien hach - anh dung cua dang ((cong dan) OR (cong san)) thoai cac.
• Adding a wildcard symbol may retrieve word variants: hoc thien hach - anh dung cua dang ((cong dan) or (cong san)) thoai cac*.