Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
nang xa » nang x, lang xa, nang ma
han tai » hang tai, nhan tai, van tai
tai cua » thai cua, tai cuc, tri cua
cua tre » cua te, cuu tre, cua triet
va cam » va cham, va cac, va cao
xuc va » duc va, luc va, xac va
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: thu sach y ((nang xa) or (van xay)) hoi. lieu va cam ((xuc va) or (tuc va)) han tai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach y ((nang xa) OR (van xay)) hoi. lieu va cam ((xuc va) OR (tuc va)) han tai cua tre.
• Adding a wildcard symbol may retrieve word variants: thu sach y ((nang xa) or (van xay)) hoi. lieu va cam ((xuc va) or (tuc va)) han tai cua tre*.