Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
toc sach » hoc sach, doc sach, nuoc sach
cham xuc » cam xuc, chat xuc, cham soc
hieu van » hieu va, thien van, lieu va
van cham » van chat, van tham, va cham
lang xa » lang ha, dang xay, lang van
tu lang » cu lang, tu lanh, xu lang
va tinh » may tinh
tinh ve » trinh ve, tinh ven, dinh ve
cua tre » cua te, cuu tre, cua triet
so viet » hoc viet
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) OR (thuoc sach)) tu lang xa hoi. hieu van cham xuc va tinh ve ((cua tre) or (so viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((toc sach) OR (thuoc sach)) tu lang xa hoi. hieu van cham xuc va tinh ve ((cua tre) OR (so viet))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((toc sach) OR (thuoc sach)) tu lang xa hoi. hieu van cham xuc va tinh ve ((cua tre) or (so viet))*".