Perhaps you should try some spelling variations:
hoach kinh » hoach dinh, sach kinh, cach kinh
hoc chuyen » khong chuyen
kien thuoc » kien thuc, bien thuoc, trien thuoc
thuoc sach » hoc sach, nuoc sach, thuat sach
sach khoa » bach khoa, sach nha, anh khoa
khoa phan » hoa phan, khoa than, khoa phau
phan cong » thanh cong
may trinh » may tinh, lap trinh, quy trinh
hoc kinh » hoc sinh, luoc kinh
cong may » cong xay, cong ma, cong hay

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: thu ((hoach kinh) OR (hoc kinh)) hoc chuyen đe ky thuat: kien thuoc sach khoa phan cong may trinh~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu ((hoach kinh) OR (hoc kinh)) hoc chuyen đe ky thuat: kien thuoc sach khoa phan cong may trinh".
• Adding a wildcard symbol may retrieve word variants: thu ((hoach kinh) OR (hoc kinh)) hoc chuyen đe ky thuat: kien thuoc sach khoa phan cong may trinh*.