Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
lang xa » lang ha, dang xay, lang van
nang xa » nang x, nang ma, mang xa
va tham » van tham, va cham, va thanh
hang di » hang doi, hang vi, hang dien
cua tre » cua te, cuu tre, cua triet
goc va » hoc va, doc va, uoc va
loc va » hoc va, luc va
di cua » dai cua, doi cua, de cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuoc sach y ((nang xa) OR (lang xa)) hoi. lieu va tham ((goc va) or (loc va)) hang di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sach y ((nang xa) OR (lang xa)) hoi. lieu va tham ((goc va) OR (loc va)) hang di cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuoc sach y ((nang xa) OR (lang xa)) hoi. lieu va tham ((goc va) or (loc va)) hang di cua tre".
• Adding a wildcard symbol may retrieve word variants: thuoc sach y ((nang xa) OR (lang xa)) hoi. lieu va tham ((goc va) or (loc va)) hang di cua tre*.