Perhaps you should try some spelling variations:
trien thuoc » trien thuc, trien thuong, tin thuoc
hoc chuyen » khong chuyen
sach tren » sach tien, sach tranh
cach hoan » cac khoan, hach toan, sach han
tren hoc » truyen hoc, trung hoc, triet hoc
bach hoa » bach khoa, bach ha, hoach hoa
dan dang » dang dang, dan dung, da dang
dang xay » dang van, van xay
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 tren hoc chuyen đe ky thuat: trien thuoc ((bach hoa) OR (cach hoan)) dan dang xay tinh~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach tren hoc chuyen đe ky thuat: trien thuoc ((bach hoa) OR (cach hoan)) dan dang xay tinh".
• Adding a wildcard symbol may retrieve word variants: su sach tren hoc chuyen đe ky thuat: trien thuoc ((bach hoa) OR (cach hoan)) dan dang xay tinh*.