Perhaps you should try some spelling variations:
hoc chuyen » khong chuyen
hang khoa » dung khoa
phan cung » phan ung, phan xuong, phan quang
phan cong » thanh cong
sach tin » sach tien, sach kinh, sach tren
kien thu » kien thuc, kieu thu, kiem thu
thu hang » thi hang, thuc hanh, thu huong
may dinh » may tinh, mai dinh, my dinh
tu sach » thu sach, su sach, te 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: tu sach tin hoc chuyen đe ky thuat: kien thu hang khoa ((phan cung) OR (phan cong)) may dinh~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach tin hoc chuyen đe ky thuat: kien thu hang khoa ((phan cung) OR (phan cong)) may dinh".
• Adding a wildcard symbol may retrieve word variants: tu sach tin hoc chuyen đe ky thuat: kien thu hang khoa ((phan cung) OR (phan cong)) may dinh*.