Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
dang cay » dang xay, dang cac, dung cay
tinh lao » dinh lam, tinh nam, tinh va
dang ca » dang cac, dan ca, hang ca
ve pham » vi pham, ve phan, ve phat
va tinh » may tinh
lao cua » lai cua, lam cua, bao cua
cua tre » cua te, cuu tre, cua triet
v pham » vi pham, d pham

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: toc sach y ((dang cay) OR (dang ca)) phoi. hieu ((ve pham) OR (v pham)) duc va tinh lao cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach y ((dang cay) OR (dang ca)) phoi. hieu ((ve pham) or (v pham)) duc va tinh lao cua tre~".
• Adding a wildcard symbol may retrieve word variants: toc sach y ((dang cay) OR (dang ca)) phoi. hieu ((ve pham) or (v pham)) duc va tinh lao cua tre*.