Perhaps you should try some spelling variations:
hoc chuyen » khong chuyen
thuc cach » thuoc sach, truoc cach, thuc hanh
phan cung » phan cong, phan ung, phan xuong
sach tin » sach tien, sach kinh, sach tren
cach hoa » cach hoan, cach hoc, bach hoa
hoa phan » hoa dan, co phan
cung may » dung may, cong may, cung hay
tu sach » thu sach, su sach, te sach
tin hoc » sinh hoc
tinh » trinh, 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 tin hoc chuyen đe ky thuat: kien thuc cach hoa phan cung may ((tinh OR kinh) or dinh)~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach tin hoc chuyen đe ky thuat: kien thuc cach hoa phan cung may ((tinh OR kinh) OR dinh).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach tin hoc chuyen đe ky thuat: kien thuc cach hoa phan cung may ((tinh OR kinh) or dinh)".
• Adding a wildcard symbol may retrieve word variants: tu sach tin hoc chuyen đe ky thuat: kien thuc cach hoa phan cung may ((tinh OR kinh) or dinh)*.