Perhaps you should try some spelling variations:
hoc chuyen » khong chuyen
sach dien » mach dien, sach tien, dich dien
hang khoa » dung khoa
phan dang » phan dau, phan cong, nhan dan
dien hoc » dien hoa, khien hoc, tin hoc
kien thu » kien thuc, kieu thu, kiem thu
anh khoa » doanh khoa
dang may » mang may, dang xay, dung may
tu sach » thu sach, su sach, te sach
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 dien hoc chuyen đe ky thuat: kien thu ((anh khoa) or (hang khoa)) phan dang may tinh~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach dien hoc chuyen đe ky thuat: kien thu ((anh khoa) OR (hang khoa)) phan dang may tinh.
• Adding a wildcard symbol may retrieve word variants: tu sach dien hoc chuyen đe ky thuat: kien thu ((anh khoa) or (hang khoa)) phan dang may tinh*.