Perhaps you should try some spelling variations:
hoc chuyen » khong chuyen
cach thoi » cac thoi, cach thuc, cach noi
bach tin » sach tien, hanh tin, bac tinh
sach hoa » sach ha, sach hoi, bach hoa
phan dat » phan dau, phan dai, phan day
tin hoc » sinh hoc
dat may » dam may
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 bach tin hoc chuyen đe ky thuat: kien thuc ((sach hoa) or (cach thoi)) phan dat may tinh~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu bach tin hoc chuyen đe ky thuat: kien thuc ((sach hoa) OR (cach thoi)) phan dat may tinh.
• Adding a wildcard symbol may retrieve word variants: vu bach tin hoc chuyen đe ky thuat: kien thuc ((sach hoa) or (cach thoi)) phan dat may tinh*.