Perhaps you should try some spelling variations:
tin khong » tinh khong, tien khong, thinh khong
thuc bach » truc bach, thuc cach, thuoc sach
bach khoa » anh khoa
sach tin » sach tien, sach kinh, sach tren
khoa can » khoa cam, khoa cap, khoi can
can dung » chan dung, van dung, dan dung
dung may » dung va, dung tai, mang may
tu sach » thu sach, su sach, te sach
tinh » trinh, dinh, kinh

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 khong chuyen đe ky thuat: kien thuc bach khoa can dung may (tinh OR minh)~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach tin khong chuyen đe ky thuat: kien thuc bach khoa can dung may (tinh OR minh)".
• Adding a wildcard symbol may retrieve word variants: tu sach tin khong chuyen đe ky thuat: kien thuc bach khoa can dung may (tinh OR minh)*.