Perhaps you should try some spelling variations:
hoc chuyen » khong chuyen
cach thoi » cac thoi, cach thuc, cach noi
sach tin » sach tien, sach kinh, sach tren
sach hoa » sach ha, sach hoi, bach hoa
phan dau » phan tu, hang dau
vu sach » vu bach, su sach, vu khach
tin hoc » sinh hoc
dau may » dam may, dat may, dau cay
tinh » trinh, dinh, minh

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach tin hoc chuyen đe ky thuat: kien thuc ((sach hoa) or (cach thoi)) phan dau may tinh~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach tin hoc chuyen đe ky thuat: kien thuc ((sach hoa) OR (cach thoi)) phan dau may tinh.
• Adding a wildcard symbol may retrieve word variants: vu sach tin hoc chuyen đe ky thuat: kien thuc ((sach hoa) or (cach thoi)) phan dau may tinh*.