Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
chieu tinh » trieu tinh, lieu tinh, chau tinh
trong tinh » truong tinh, trong kinh, trong sinh
van duong » van dong, van dung, van phong
va duong » va tuong, va huong, va dong
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chieu sach) or (chieu tinh)) - canh tranh ((va duong) OR (van duong)) trong tinh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (chieu tinh)) - canh tranh ((va duong) OR (van duong)) trong tinh toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sach) or (chieu tinh)) - canh tranh ((va duong) OR (van duong)) trong tinh toan cau".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) or (chieu tinh)) - canh tranh ((va duong) OR (van duong)) trong tinh toan cau*.