Perhaps you should try some spelling variations:
hoc chuyen » khong chuyen
sach tien » sach tren, sach thieu
ban thuoc » dang thuoc, cay thuoc, nam thuoc
cay trinh » may tinh, lap trinh, quy trinh
tien hoc » tin hoc, tien hoa, dien hoc
bach hai » bach mai, bach ha, bac dai
hai phan » thai phan, tai phan, hai pham
phan dau » phan tu, hang dau
so sach » so sanh, bo sach, co sach
dau cay » dau xay, dau ngay
thuc » thu

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach tien hoc chuyen đe ky thuat: ((kien thuc) or (ban thuoc)) bach hai phan dau cay trinh~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach tien hoc chuyen đe ky thuat: ((kien thuc) OR (ban thuoc)) bach hai phan dau cay trinh.
• Adding a wildcard symbol may retrieve word variants: so sach tien hoc chuyen đe ky thuat: ((kien thuc) or (ban thuoc)) bach hai phan dau cay trinh*.