Perhaps you should try some spelling variations:
tinh vai » tinh va, tinh hai, tinh bai
dang xay » dang van, van xay
sach ky » sac ky, sach y, sach ty
vai cua » dai cua, hai cua, lai cua
vu sach » vu bach, su sach, vu khach
dang xa » lang xa, dang ha, dang va
cua tre » cua te, cuu tre, cua triet
va cam » va cham, va cac, va cao
luc va » tuc va, loc 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 ky ((dang xa) OR (dang xay)) hoi. lieu va cam ((luc va) or (duc va)) tinh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ky ((dang xa) OR (dang xay)) hoi. lieu va cam ((luc va) OR (duc va)) tinh vai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach ky ((dang xa) OR (dang xay)) hoi. lieu va cam ((luc va) or (duc va)) tinh vai cua tre".
• Adding a wildcard symbol may retrieve word variants: vu sach ky ((dang xa) OR (dang xay)) hoi. lieu va cam ((luc va) or (duc va)) tinh vai cua tre*.