Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
chua xang » chua nang, chu bang, chua dong
anh tang » anh bang, anh dang, anh nang
cong dan » cong san, cong tan, huong dan
toan cau » toan ban, toan tap, toan tai
toan cao » toan ban, toan tap
tang va » trang va, tang van, thang va
chuc » thuc, chu, phuc

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