Perhaps you should try some spelling variations:
hoc chuyen » khong chuyen
sach sinh » sach kinh, sach danh, sach song
thuc cach » thuoc sach, truoc cach, thuc hanh
khoa phan » hoa phan, khoa than, khoan phai
khoa phau » hoa phan, khoa kham, khoa than
cong xay » thong xay, trong xay, cong ty
xay tinh » may tinh, xa tinh, tay tinh
su sach » so sach, vu sach

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 sinh hoc chuyen đe ky thuat: kien thuc cach ((khoa phan) OR (khoa phau)) cong xay tinh~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach sinh hoc chuyen đe ky thuat: kien thuc cach ((khoa phan) OR (khoa phau)) cong xay tinh".
• Adding a wildcard symbol may retrieve word variants: su sach sinh hoc chuyen đe ky thuat: kien thuc cach ((khoa phan) OR (khoa phau)) cong xay tinh*.