Perhaps you should try some spelling variations:
tranh quang » tran quang, trinh quang, tinh quang
chieu sach » chinh sach, chiet tach, chieu sang
doi chieu » doc hieu, doi chi, ho chieu
thanh qua » thanh quan, thanh qui, hanh qua
trong ty » trong ky, trong ly, trong tu
phan cau » phan dau, phan cac, phan tu
ty phan » ly phan, tu phan, tai phan

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 sach - canh ((tranh quang) or (thanh qua)) dung trong ty phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - canh ((tranh quang) OR (thanh qua)) dung trong ty phan cau.
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - canh ((tranh quang) or (thanh qua)) dung trong ty phan cau*.