Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
dong trong » duong trong, dung trong, cong trong
doi chieu » doc hieu, doi chi, ho chieu
tranh cua » doanh cua, manh cua
cua dong » chua dong, cua cong, cua dang
tan toan » tan tran, van toan, dan toan
tap toan » tap doan, tap quan, bai toan

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 cua dong trong ((tan toan) or (tap toan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - canh tranh cua dong trong ((tan toan) OR (tap toan)) cau*.