Perhaps you should try some spelling variations:
kien thuoc » kien thuc, bien thuoc, trien thuoc
hoc chuyen » khong chuyen
thuoc sach » hoc sach, nuoc sach, thuat sach
khoa phau » hoa phan, khoa kham, khoa thu
khoa than » khoa luan, hoa thai, hoa tan
sach tin » sach tien, sach kinh, sach tren
cong may » cong xay, cong ma, cong hay
may minh » may tinh, mai minh, van minh
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 thuoc sach ((khoa phau) or (khoa than)) cong may minh~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach tin hoc chuyen đe ky thuat: kien thuoc sach ((khoa phau) OR (khoa than)) cong may minh.
• Adding a wildcard symbol may retrieve word variants: su sach tin hoc chuyen đe ky thuat: kien thuoc sach ((khoa phau) or (khoa than)) cong may minh*.