Perhaps you should try some spelling variations:
thien chanh » thien thanh, thien chinh, hien hanh
thien dang » thien bang, thien danh, thien nang
dang cong » dung cong
anh tang » anh bang, anh dang, anh nang
tang cua » mang cua, hang cua, tang luan
cua dang » cua cong, cua ban
cong dan » cong san, cong tan, huong dan

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 chanh) or (thien dang)) - anh tang cua dang cong dan ((toan ban) or (van ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thien chanh) OR (thien dang)) - anh tang cua dang cong dan ((toan ban) OR (van ban)).
• Adding a wildcard symbol may retrieve word variants: hoc ((thien chanh) or (thien dang)) - anh tang cua dang cong dan ((toan ban) or (van ban))*.