Perhaps you should try some spelling variations:
canh trinh » canh tranh, hanh trinh, canh tinh
dung cong » dung trong
trinh va » trinh van, trinh vat, trinh ve
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan cau » toan cao, toan ban, toan tap
ho lieu » so lieu, co lieu, ho kieu
co hieu » cao hieu, doc hieu
va dung » van dung, va duong, vat dung

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho lieu) or (co hieu)) tinh - canh trinh va dung cong tan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho lieu) OR (co hieu)) tinh - canh trinh va dung cong tan toan cau*.