Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
cham xuc » cam xuc, chat xuc, cham soc
lang van » dang van, tang van, hoang van
dinh te » kinh te, dinh ve, dinh tu
ve cham » va cham, ve chat, vu cham
sach tu » sach thu, cach tu, sach ty
hieu ve » hieu va, hieu van
lang xa » lang ha, dang xay
cua tre » cua te, cuu tre, cua triet
xuc va » duc va, tuc va, luc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach tu ((lang xa) OR (lang van)) hoi. hieu ve cham xuc va ((dinh te) or (dich te)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach tu ((lang xa) OR (lang van)) hoi. hieu ve cham xuc va ((dinh te) OR (dich te)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach tu ((lang xa) OR (lang van)) hoi. hieu ve cham xuc va ((dinh te) or (dich te)) cua tre".
• Adding a wildcard symbol may retrieve word variants: toc sach tu ((lang xa) OR (lang van)) hoi. hieu ve cham xuc va ((dinh te) or (dich te)) cua tre*.