Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
chua xang » chua nang, chu bang, chua dong
cua nhung » va nhung
anh tang » anh bang, anh dang, anh nang
tang cua » mang cua, hang cua, tang luan
cong dan » cong san, cong tan, huong dan
toan cau » toan ban, toan tap, toan tai
toan cao » toan ban, toan tap

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

• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chuc nang) OR (chua xang)) - anh tang cua nhung cong dan ((toan cau) OR (toan cao))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chuc nang) or (chua xang)) - anh tang cua nhung cong dan ((toan cau) OR (toan cao))~".
• Adding a wildcard symbol may retrieve word variants: theo ((chuc nang) or (chua xang)) - anh tang cua nhung cong dan ((toan cau) OR (toan cao))*.