Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
trong tinh » truong tinh, trong kinh, trong sinh
anh tang » anh bang, anh dang, anh nang
toan cau » toan cao, toan ban, toan tap
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: theo chieu sach - ((anh tang) or (canh tranh)) va dung trong tinh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - ((anh tang) OR (canh tranh)) va dung trong tinh toan cau.
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - ((anh tang) or (canh tranh)) va dung trong tinh toan cau*.