Perhaps you should try some spelling variations:
hoc chuyen » khong chuyen
sach tren » sach tien, sach tranh
cach khoa » cac khoa, cac khoan, anh khoa
bach khoa » anh khoa
tren hoc » truyen hoc, trung hoc, triet hoc
phan ung » phan xuong, phan cong
tu sach » thu sach, su sach, te sach
ung may » dung may, cung may, mang may
tinh » trinh, dinh, minh

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach tren hoc chuyen đe ky thuat: kien thuc ((cach khoa) OR (bach khoa)) phan ung may tinh~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach tren hoc chuyen đe ky thuat: kien thuc ((cach khoa) OR (bach khoa)) phan ung may tinh".
• Adding a wildcard symbol may retrieve word variants: tu sach tren hoc chuyen đe ky thuat: kien thuc ((cach khoa) OR (bach khoa)) phan ung may tinh*.