Perhaps you should try some spelling variations:
hoc chuyen » khong chuyen
hoa chuyen » khoa chuyen, hoa huyen, khoe chuyen
sach tien » sach tren, sach thieu
may trinh » may tinh, lap trinh, quy trinh
sach hoa » sach ha, sach hoi, bach hoa
hoa phan » hoa dan, co phan
phan ung » phan xuong, phan cong
tu sach » thu sach, su sach, te sach
bien do » bien doi, bien so
do sach » doc sach, do sanh, bo sach
ung may » dung may, cung may, mang may

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 tien ((hoa chuyen) or (hoc chuyen)) đe ky thuat: bien do sach hoa phan ung may trinh~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach tien ((hoa chuyen) OR (hoc chuyen)) đe ky thuat: bien do sach hoa phan ung may trinh.
• Adding a wildcard symbol may retrieve word variants: tu sach tien ((hoa chuyen) or (hoc chuyen)) đe ky thuat: bien do sach hoa phan ung may trinh*.