Perhaps you should try some spelling variations:
hoc chuyen » khong chuyen
sach tien » sach tren, sach thieu
thuc hang » thuc hanh, thu hang, phuc hang
hang khoa » dung khoa
khoa phan » hoa phan, khoa than, khoa phau
phan cong » thanh cong
thu sach » tu sach, thuat sach, thuoc sach
tien hoc » tin hoc, tien hoa, dien hoc
cong may » cong xay, cong ma, cong hay
tinh » trinh, minh, kinh

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 hoc chuyen đe ky thuat: kien thuc hang khoa phan cong may (tinh OR dinh)~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach tien hoc chuyen đe ky thuat: kien thuc hang khoa phan cong may (tinh OR dinh)".
• Adding a wildcard symbol may retrieve word variants: thu sach tien hoc chuyen đe ky thuat: kien thuc hang khoa phan cong may (tinh OR dinh)*.