Perhaps you should try some spelling variations:
trien thuoc » trien thuc, trien thuong, tin thuoc
thuoc sach » hoc sach, nuoc sach, thuat sach
may trinh » may tinh, lap trinh, quy trinh
theu hoa » tieu hoa, thi hoa, thu hoan
tien hoa » dien hoa, trien hoat, tien va
sach hoa » sach ha, sach hoi, bach hoa
tan cong » tan cuong, tran cong, toan cong
cong may » cong xay, cong ma, cong hay
tu sach » thu sach, su sach, te sach
hoa tan » hoa dan, hoa van, hoa tin

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 hoa) OR (tien hoa)) chuyen đe ky thuat: trien thuoc sach hoa tan cong may trinh~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((theu hoa) OR (tien hoa)) chuyen đe ky thuat: trien thuoc sach hoa tan cong may trinh".
• Adding a wildcard symbol may retrieve word variants: tu sach ((theu hoa) OR (tien hoa)) chuyen đe ky thuat: trien thuoc sach hoa tan cong may trinh*.