Perhaps you should try some spelling variations:
hoc chuyen » khong chuyen
thuc bach » truc bach, thuc cach, thuoc sach
bach khoa » anh khoa
khoa than » khoa luan, hoa thai, hoa tan
sach tin » sach tien, sach kinh, sach tren
cung hay » cung may, chung han, cung tham
cong hay » cong ha, cong xay, cong hai
su sach » so sach, vu sach
tin hoc » sinh hoc

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 hoc chuyen đe ky thuat: kien thuc bach khoa than ((cung hay) or (cong hay)) tinh~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach tin hoc chuyen đe ky thuat: kien thuc bach khoa than ((cung hay) OR (cong hay)) tinh.
• Adding a wildcard symbol may retrieve word variants: su sach tin hoc chuyen đe ky thuat: kien thuc bach khoa than ((cung hay) or (cong hay)) tinh*.