Perhaps you should try some spelling variations:
tieu sach » chieu sach, dien sach, viet sach
trong tan » trong quan, trong cac, trong ca
cua dung » cua dang, qua dung, cua rung
cua dong » chua dong, cua cong, cua dang
tan toan » tan tran, tap toan, van toan
toan cao » toan ban, toan tap
te sach » toc sach

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((tieu sach) OR (te sach)) - nhanh quang ((cua dung) or (cua dong)) trong tan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((tieu sach) OR (te sach)) - nhanh quang ((cua dung) OR (cua dong)) trong tan toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((tieu sach) OR (te sach)) - nhanh quang ((cua dung) or (cua dong)) trong tan toan cao".
• Adding a wildcard symbol may retrieve word variants: theo ((tieu sach) OR (te sach)) - nhanh quang ((cua dung) or (cua dong)) trong tan toan cao*.