Perhaps you should try some spelling variations:
hoc chuyen » khong chuyen
sach tren » sach tien, sach tranh
thuc cach » thuoc sach, truoc cach, thuc hanh
cach khoa » bach khoa, cac khoa, cac khoan
khoa phau » hoa phan, khoa kham, khoa than
phau cong » phan cong, pham cong, phap cong
sach tin » sach tien, sach kinh, sach han
cong xay » thong xay, trong xay, cong ty
xay tinh » may tinh, xa tinh, tay tinh

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