Perhaps you should try some spelling variations:
thanh vi » thanh va, thanh ve, nhanh vi
vu sach » vu bach, su sach, vu khach
sach ty » sach y, sach tu, sach thu
ty lang » tay lang, ty xang, ty hang
lang xa » lang ha, dang xay, lang van
van cau » van dau, van hau, van chat
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: vu sach ty lang xa hoi. hieu ((van cau) or (van nam)) xuc va ((thanh vi) OR (hanh vi)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ty lang xa hoi. hieu ((van cau) OR (van nam)) xuc va ((thanh vi) OR (hanh vi)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach ty lang xa hoi. hieu ((van cau) or (van nam)) xuc va ((thanh vi) OR (hanh vi)) cua tre".
• Adding a wildcard symbol may retrieve word variants: vu sach ty lang xa hoi. hieu ((van cau) or (van nam)) xuc va ((thanh vi) OR (hanh vi)) cua tre*.