Perhaps you should try some spelling variations:
chua xang » chua nang, chu bang, chua dong
trung van » truong van, trong van, trung tuan
dung cong » dung trong
trung va » truong va, trang va, trung ha
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan cau » toan cao, toan ban, toan tap
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: ho ((chua xang) or (chuc nang)) - hanh ((trung van) OR (trung va)) dung cong san toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chua xang) OR (chuc nang)) - hanh ((trung van) OR (trung va)) dung cong san toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chua xang) or (chuc nang)) - hanh ((trung van) OR (trung va)) dung cong san toan cau".
• Adding a wildcard symbol may retrieve word variants: ho ((chua xang) or (chuc nang)) - hanh ((trung van) OR (trung va)) dung cong san toan cau*.