Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
chua xang » chua nang, chu bang, chua dong
manh toan » thanh toan, anh tuan, tinh toan
anh tang » anh bang, anh dang, anh nang
dan toan » van toan, dan than, xuan toan
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) or (manh toan)) cau~.
• 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) OR (manh toan)) cau.
• 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) or (manh toan)) cau".
• Adding a wildcard symbol may retrieve word variants: theo ((chua xang) OR (chuc nang)) - anh tang va nhung cong ((dan toan) or (manh toan)) cau*.