Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
chua nang » chua xang, kha nang, cuu nang
tan thanh » tran thanh, tang thanh, toan thanh
thanh cac » hanh cac, thanh bac, thanh ca
tang cua » mang cua, tang luan, thong cua
hang cua » mang cua, hang ca, huong cua
cong tan » cong tac, cong san, cong thanh
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 nang) OR (chuc nang)) - hanh ((tang cua) or (hang cua)) nhung cong tan thanh cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chua nang) OR (chuc nang)) - hanh ((tang cua) OR (hang cua)) nhung cong tan thanh cac.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chua nang) OR (chuc nang)) - hanh ((tang cua) or (hang cua)) nhung cong tan thanh cac".
• Adding a wildcard symbol may retrieve word variants: theo ((chua nang) OR (chuc nang)) - hanh ((tang cua) or (hang cua)) nhung cong tan thanh cac*.