Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuoc sinh
thuat sach » thuat lanh, thuat san
hoc chuyen » khong chuyen
thuc hang » thuc hanh, thu hang, phuc hang
hang khoa » dung khoa
khoa phan » hoa phan, khoa than, khoa phau
phan cong » thanh cong
tien hoc » tin hoc, tien hoa, dien hoc
cong may » cong xay, cong ma, cong hay
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: ((thuoc sach) OR (thuat sach)) tien hoc chuyen đe ky thuat: kien thuc hang khoa phan cong may tinh~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thuoc sach) OR (thuat sach)) tien hoc chuyen đe ky thuat: kien thuc hang khoa phan cong may tinh".
• Adding a wildcard symbol may retrieve word variants: ((thuoc sach) OR (thuat sach)) tien hoc chuyen đe ky thuat: kien thuc hang khoa phan cong may tinh*.