Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
thanh hai » thanh phan, thanh hoa, thanh san
hai cua » thai cua, dai cua, hoi cua
ve cham » va cham, ve chat, vu cham
nang xa » lang xa, nang ma, mang xa
hieu ve » hieu va, hieu van
cua tre » cua te, cuu tre, cua triet
tuc va » thuc va, truc va, tuc xa

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat sach y ((nang xa) or (nang x)) hoi. hieu ve cham ((duc va) or (tuc va)) thanh hai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach y ((nang xa) OR (nang x)) hoi. hieu ve cham ((duc va) OR (tuc va)) thanh hai cua tre.
• Adding a wildcard symbol may retrieve word variants: thuat sach y ((nang xa) or (nang x)) hoi. hieu ve cham ((duc va) or (tuc va)) thanh hai cua tre*.