Perhaps you should try some spelling variations:
hoc chuyen » khong chuyen
sach tren » sach tien, sach tranh
cach hoan » cac khoan, hach toan, sach han
phan cong » thanh cong
thu sach » tu sach, thuat sach, thuoc sach
tren hoc » truyen hoc, trung hoc, triet hoc
bach hoa » bach khoa, bach ha, hoach hoa
cong may » cong xay, cong ma, cong hay
may minh » may tinh, mai minh, van minh

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach tren hoc chuyen đe ky thuat: kien thuc ((bach hoa) OR (cach hoan)) phan cong may minh~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach tren hoc chuyen đe ky thuat: kien thuc ((bach hoa) OR (cach hoan)) phan cong may minh".
• Adding a wildcard symbol may retrieve word variants: thu sach tren hoc chuyen đe ky thuat: kien thuc ((bach hoa) OR (cach hoan)) phan cong may minh*.