Perhaps you should try some spelling variations:
chua xang » chua nang, chuc nang, chu bang
dang cong » dung cong
chu xang » chu bang, chuc nang, chu quang
sang cua » mang cua, song cua, hang cua
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan cau » toan cao, toan ban, toan tap
san cua » ban cua, dan cua, nan cua

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 ((chu xang) OR (chua xang)) - thanh ((san cua) OR (sang cua)) dang cong tan toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chu xang) or (chua xang)) - thanh ((san cua) OR (sang cua)) dang cong tan toan cau~".
• Adding a wildcard symbol may retrieve word variants: theo ((chu xang) or (chua xang)) - thanh ((san cua) OR (sang cua)) dang cong tan toan cau*.