Perhaps you should try some spelling variations:
hoc chuyen » khong chuyen
kien truoc » kien truc, bien thuoc, gian truoc
sach sinh » sach kinh, sach danh, sach song
cach khoa » bach khoa, cac khoa, cac khoan
khoa phan » hoa phan, khoa than, khoa phau
phan cong » thanh cong
cong tay » cong ty, cong tac, cong tan
tay tinh » may tinh, tay binh, thuy tinh
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 sinh hoc chuyen đe ky thuat: ((kien truoc) OR (kien thuc)) cach khoa phan cong tay tinh~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach sinh hoc chuyen đe ky thuat: ((kien truoc) OR (kien thuc)) cach khoa phan cong tay tinh".
• Adding a wildcard symbol may retrieve word variants: tu sach sinh hoc chuyen đe ky thuat: ((kien truoc) OR (kien thuc)) cach khoa phan cong tay tinh*.