Perhaps you should try some spelling variations:
hoc chuyen » khong chuyen
sach tien » sach tren, sach thieu
kien thuy » kien thuc, vien thuy, kien truc
thuy hang » thu hang, thuy hong, thuy hanh
hang khoa » dung khoa
khoa phan » hoa phan, khoa than, khoa phau
phan dung » phan ung, phan dang, chan dung
quy trinh » qua trinh, quy dinh
sach tin » sach kinh, sach tren, sach han
dung quy » cung quy, dung qua, nhung quy

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 tin) or (sach tien)) hoc chuyen đe ky thuat: kien thuy hang khoa phan dung quy trinh~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach tin) OR (sach tien)) hoc chuyen đe ky thuat: kien thuy hang khoa phan dung quy trinh.
• Adding a wildcard symbol may retrieve word variants: tu ((sach tin) or (sach tien)) hoc chuyen đe ky thuat: kien thuy hang khoa phan dung quy trinh*.