Perhaps you should try some spelling variations:
va thanh » gia thanh, ban thanh, le thanh
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
va tinh » may tinh
cua tre » cua te, cuu tre, cua triet
va cham » va chat, va tham
dang xa » dang xay, lang xa, dang ha
ky dang » ky nang, ky danh
vi cua » vai cua, di cua
va cao » va cac, va co, va dao

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 ky dang xa hoi. hieu ((va cham) or (va cao)) xuc ((va thanh) or (va tinh)) vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky dang xa hoi. hieu ((va cham) OR (va cao)) xuc ((va thanh) OR (va tinh)) vi cua tre.
• Adding a wildcard symbol may retrieve word variants: su sach ky dang xa hoi. hieu ((va cham) or (va cao)) xuc ((va thanh) or (va tinh)) vi cua tre*.