Perhaps you should try some spelling variations:
tranh quang » tran quang, trinh quang, tinh quang
chieu sach » chiet tach, chieu sang, chieu xanh
quang dung » quang trung, ung dung, cuong dung
trong tam » trong lam, trong nam, trong tan
tam toan » tap toan, tam than, pham toan
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 (chinh sach)) - canh tranh quang dung trong tam toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sach) OR (chinh sach)) - canh tranh quang dung trong tam toan cau".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) OR (chinh sach)) - canh tranh quang dung trong tam toan cau*.