Perhaps you should try some spelling variations:
nhanh thanh » phan thanh, nhanh tinh
thanh tinh » thanh binh, nhanh tinh, than kinh
trong mach » trong cac, trong minh, trong anh
hoc thieu » toc thieu, hoc hien
doi chieu » doc hieu, doi chi, ho chieu
mach toan » manh toan, hach toan, mach tuan
toan cao » toan ban, toan tap
va dung » van dung, va duong, vat dung

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc thieu) or (doi chieu)) sach - ((nhanh thanh) or (thanh tinh)) va dung trong mach toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (doi chieu)) sach - ((nhanh thanh) OR (thanh tinh)) va dung trong mach toan cao.
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (doi chieu)) sach - ((nhanh thanh) or (thanh tinh)) va dung trong mach toan cao*.