Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
kho tang » cao tang
su sach » so sach, vu sach
tang xa » trang xa, tang ma, lang xa
va dinh » van dinh, va kinh, va tinh
dinh vi » dinh ve, dinh viet, dinh tri
cua tre » cua te, cuu tre, cua triet
va cam » va cham, va cac, va cao
xuc va » duc va, tuc va, luc va
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sach) or (thuat sach)) kho tang xa hoi. lieu va cam xuc va dinh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (thuat sach)) kho tang xa hoi. lieu va cam xuc va dinh vi cua tre.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (thuat sach)) kho tang xa hoi. lieu va cam xuc va dinh vi cua tre*.