Perhaps you should try some spelling variations:
truoc cach » cuoc cach, truoc cang
hoc chuyen » khong chuyen
thuc cach » thuoc sach, thuc hanh, tuc cac
khoa phan » hoa phan, khoa than, khoa phau
phan dung » phan ung, phan dang, chan dung
kinh hoc » sinh hoc, hinh hoc, tinh hoc
dung may » dung va, dung tai, mang may
tu sach » thu sach, su sach, te sach
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: tu sach kinh hoc chuyen đe ky thuat: kien ((thuc cach) OR (truoc cach)) khoa phan dung may tinh~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach kinh hoc chuyen đe ky thuat: kien ((thuc cach) OR (truoc cach)) khoa phan dung may tinh".
• Adding a wildcard symbol may retrieve word variants: tu sach kinh hoc chuyen đe ky thuat: kien ((thuc cach) OR (truoc cach)) khoa phan dung may tinh*.