Perhaps you should try some spelling variations:
hoc chuyen » khong chuyen
sach tien » sach tren
thuc bach » truc bach, thuc cach, thuoc sach
bach hoa » bach khoa, bach ha, cach hoan
dan dung » van dung, tin dung, ap dung
dung may » dung va, dung tai, mang may
tinh » trinh, dinh, 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 tien) OR (sach thieu)) hoc chuyen đe ky thuat: kien thuc bach hoa dan dung may tinh~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu ((sach tien) OR (sach thieu)) hoc chuyen đe ky thuat: kien thuc bach hoa dan dung may tinh".
• Adding a wildcard symbol may retrieve word variants: thu ((sach tien) OR (sach thieu)) hoc chuyen đe ky thuat: kien thuc bach hoa dan dung may tinh*.