Perhaps you should try some spelling variations:
dang xay » dang van, van xay
cham tuc » nham thuc, pham thuc, tham thuc
danh lai » gianh lai, dinh lam, hanh lam
danh sai » dung sai, danh bat, danh dau
co sach » bo sach, cuon sach, hoc sach
sach ky » sac ky, sach y, sach ty
va cham » va chat, va tham
cua tre » cua te, cuu tre, cua triet

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

• If you are trying to use Boolean operators, they must be ALL CAPS: co sach ky ((nang x) OR (dang xay)) hoi. lieu va cham tuc xa ((danh lai) OR (danh sai)) cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "co sach ky ((nang x) or (dang xay)) hoi. lieu va cham tuc xa ((danh lai) OR (danh sai)) cua tre~".
• Adding a wildcard symbol may retrieve word variants: co sach ky ((nang x) or (dang xay)) hoi. lieu va cham tuc xa ((danh lai) OR (danh sai)) cua tre*.