Perhaps you should try some spelling variations:
thien danh » thien dang, thien thanh, thien chanh
thien anh » tien anh, thien thanh, thien chanh
can nhung » canh nhung, ban nhung, san nhung
cam nhung » cam hung, nam nhung, tham nhung
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cau » toan cau, phan cau, than cap

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 anh) OR (thien danh)) - hanh chinh ((can nhung) or (cam nhung)) cong dan than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thien anh) OR (thien danh)) - hanh chinh ((can nhung) OR (cam nhung)) cong dan than cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thien anh) OR (thien danh)) - hanh chinh ((can nhung) or (cam nhung)) cong dan than cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((thien anh) OR (thien danh)) - hanh chinh ((can nhung) or (cam nhung)) cong dan than cau*.