Perhaps you should try some spelling variations:
hoc chuyen » khong chuyen
kien thuoc » kien thuc, bien thuoc, trien thuoc
thuoc bach » thuoc sach, thuoc ban, truc bach
may trinh » may tinh, lap trinh, quy trinh
tien hoc » tin hoc, tien hoa, dien hoc
bach hoa » bach khoa, bach ha, cach hoan
dan dang » dang dang, dan dung, da dang
dang may » mang may, dang xay, dung may
su sach » so sach
vu sach » vu bach, vu khach

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sach) OR (vu sach)) tien hoc chuyen đe ky thuat: kien thuoc bach hoa dan dang may trinh~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) OR (vu sach)) tien hoc chuyen đe ky thuat: kien thuoc bach hoa dan dang may trinh".
• Adding a wildcard symbol may retrieve word variants: ((su sach) OR (vu sach)) tien hoc chuyen đe ky thuat: kien thuoc bach hoa dan dang may trinh*.