Perhaps you should try some spelling variations:
trien thuc » trien thuoc, tren thuc, trien thuat
thuc sach » thuoc sach, thu sach, thuc cach
sach khoa » bach khoa, sach nha, anh khoa
khoa than » khoa luan, hoa thai, hoa tan
than cong » thanh cong, thuan cong, phan cong
may trinh » may tinh, lap trinh, quy trinh
theu hoc » theu hoa, thu hoc, te hoc
tieu hoc » lieu hoc, tieu hoa, hieu hoc
cong may » cong xay, cong ma, cong hay
tu sach » thu sach, su sach, te sach

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 ((theu hoc) or (tieu hoc)) chuyen đe ky thuat: trien thuc sach khoa than cong may trinh~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((theu hoc) OR (tieu hoc)) chuyen đe ky thuat: trien thuc sach khoa than cong may trinh.
• Adding a wildcard symbol may retrieve word variants: tu sach ((theu hoc) or (tieu hoc)) chuyen đe ky thuat: trien thuc sach khoa than cong may trinh*.