Perhaps you should try some spelling variations:
trien thuoc » trien thuc, trien thuong, tin thuoc
hoc chuyen » khong chuyen
thuoc bach » thuoc sach, thuoc ban, truc bach
sach tien » sach thieu
sach tren » sach tranh
dan dang » dang dang, dan dung, da dang
dang xay » dang van, van xay
xay tinh » may tinh, xa tinh, tay tinh
bach ha » bac ha, bich ha, sach ha
ha dan » hoa dan, hat dan, ha dang

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) OR (sach tren)) hoc chuyen đe ky thuat: trien thuoc bach ha dan dang xay tinh~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach tien) OR (sach tren)) hoc chuyen đe ky thuat: trien thuoc bach ha dan dang xay tinh".
• Adding a wildcard symbol may retrieve word variants: su ((sach tien) OR (sach tren)) hoc chuyen đe ky thuat: trien thuoc bach ha dan dang xay tinh*.