Perhaps you should try some spelling variations:
kien thuat » kiem thuat, thien thuat, chien thuat
thuat sach » thuat lanh, thuat san
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
thu hoan » thi hoan, thu hoach, thu ha
cong may » cong xay, cong ma, cong hay
tu sach » thu sach, su sach, te sach
thu hoa » thu hoai, thuy hoa, theu hoa

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 ((thu hoa) OR (thu hoan)) chuyen đe ky thuat: kien thuat sach khoa than cong may trinh~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((thu hoa) OR (thu hoan)) chuyen đe ky thuat: kien thuat sach khoa than cong may trinh".
• Adding a wildcard symbol may retrieve word variants: tu sach ((thu hoa) OR (thu hoan)) chuyen đe ky thuat: kien thuat sach khoa than cong may trinh*.