Perhaps you should try some spelling variations:
khoan thanh » phan thanh, hoang thanh, khoa than
hoc chuyen » khong chuyen
hoan thanh » hoang thanh, ban thanh, van thanh
sach tien » sach tren, sach thieu
trong xay » thong xay, trong cac, trong ca
tien hoc » tin hoc, tien hoa, dien hoc
thuc cac » thuc cach, tuc cac, phuc cac
xay tinh » may tinh, xa tinh, tay tinh
su sach » so sach, vu sach

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 tien hoc chuyen đe ky thuat: kien thuc cac ((khoan thanh) OR (hoan thanh)) trong xay tinh~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach tien hoc chuyen đe ky thuat: kien thuc cac ((khoan thanh) OR (hoan thanh)) trong xay tinh".
• Adding a wildcard symbol may retrieve word variants: su sach tien hoc chuyen đe ky thuat: kien thuc cac ((khoan thanh) OR (hoan thanh)) trong xay tinh*.