Perhaps you should try some spelling variations:
kien thuoc » kien thuc, bien thuoc, trien thuoc
hoc chuyen » khong chuyen
thuoc toan » thuoc tan, thuoc thanh, thuat toan
thu sach » thuat sach, thuoc sach, thu hoach
toan hoa » toan khoa, toan hoat, toan hoc
hoa phan » hoa dan, co phan
phan ung » phan xuong, phan cong
tu sach » su sach, te sach, tu cach
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) or (thu sach)) sinh hoc chuyen đe ky thuat: kien thuoc toan hoa phan ung may tinh~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu sach)) sinh hoc chuyen đe ky thuat: kien thuoc toan hoa phan ung may tinh.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thu sach)) sinh hoc chuyen đe ky thuat: kien thuoc toan hoa phan ung may tinh*.