Perhaps you should try some spelling variations:
dung cong » dung trong
tranh va » tranh van, trang va, trinh va
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cau » toan cao, toan ban, toan tap
cao cho » cap cho, cao chat
va dung » van dung, va duong, vat dung
chao » chat, chan, thao

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((chao xu) or (cao cho)) sang - canh tranh va dung cong tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((chao xu) OR (cao cho)) sang - canh tranh va dung cong tac toan cau.
• Adding a wildcard symbol may retrieve word variants: ((chao xu) or (cao cho)) sang - canh tranh va dung cong tac toan cau*.