Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
canh thanh » canh tranh, danh thanh, anh thanh
doi chieu » doc hieu, doi chi, ho chieu
cong manh » cong danh, duong manh, cong thanh
manh toan » thanh toan, anh tuan, tinh toan
san bang » can bang, san sang, gan bang
toan cau » toan cao, toan ban, toan tap
can ban » van ban, toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu tinh - canh thanh ((san bang) or (can ban)) cong manh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu tinh - canh thanh ((san bang) OR (can ban)) cong manh toan cau.
• Adding a wildcard symbol may retrieve word variants: doi chieu tinh - canh thanh ((san bang) or (can ban)) cong manh toan cau*.