Perhaps you should try some spelling variations:
hoc chuyen » khong chuyen
thuc bach » truc bach, thuc cach, thuoc sach
phan cong » thanh cong
bach hoa » bach khoa, bach ha, cach hoan
hoa phan » hoa dan, co phan
cong xay » thong xay, trong xay, cong ty
xay tinh » may tinh, xa tinh, tay tinh
tu sach » thu sach, te sach, tu cach
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: ((tu sach) OR (su sach)) sinh hoc chuyen đe ky thuat: kien thuc bach hoa phan cong xay tinh~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (su sach)) sinh hoc chuyen đe ky thuat: kien thuc bach hoa phan cong xay tinh".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) OR (su sach)) sinh hoc chuyen đe ky thuat: kien thuc bach hoa phan cong xay tinh*.