Perhaps you should try some spelling variations:
sach thien » sach thieu, sach tien, cach thien
van chuyen » cau chuyen, van chien
kien thuoc » kien thuc, bien thuoc, trien thuoc
thien van » thi van
tin thuoc » tin thuong, tin hoc, ban thuoc
bach khoa » anh khoa
khoa phan » hoa phan, khoa than, khoa phau
phan cang » phan cong, phan dang, phan cung
thu sach » tu sach, thuat sach, thuoc sach
cang may » mang may, bang may, cong may
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: thu sach thien van chuyen đe ky thuat: ((kien thuoc) or (tin thuoc)) bach khoa phan cang may tinh~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach thien van chuyen đe ky thuat: ((kien thuoc) OR (tin thuoc)) bach khoa phan cang may tinh.
• Adding a wildcard symbol may retrieve word variants: thu sach thien van chuyen đe ky thuat: ((kien thuoc) or (tin thuoc)) bach khoa phan cang may tinh*.