Perhaps you should try some spelling variations:
cang thang » cong thanh, dang thanh
theo chua » theo chu, ho chua, cheo cua
thang ca » thang cua, hang ca, tang ca
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
toan cau » toan cao, toan ban, toan tap
chi cua » chi cuc, khi cua, cuoi cua
ca dung » cao dung, cap dung, cu dung

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo chua) or (chi cua)) xang - cang thang ca dung ((cong dan) or (cong san)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chua) OR (chi cua)) xang - cang thang ca dung ((cong dan) OR (cong san)) toan cau.
• Adding a wildcard symbol may retrieve word variants: ((theo chua) or (chi cua)) xang - cang thang ca dung ((cong dan) or (cong san)) toan cau*.