Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
lang xa » lang ha, dang xay, lang van
va cham » va chat, va tham
hanh di » hanh de, hang di, danh di
cua tre » cua te, cuu tre, cua triet
y lang » o lang, _ lang, tay lang
goc va » hoc va, doc va, uoc va
loc va » hoc 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: thu sach y lang xa hoi. lieu va cham ((goc va) or (loc va)) ((hanh di) OR (hanh vi)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach y lang xa hoi. lieu va cham ((goc va) OR (loc va)) ((hanh di) OR (hanh vi)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach y lang xa hoi. lieu va cham ((goc va) or (loc va)) ((hanh di) OR (hanh vi)) cua tre".
• Adding a wildcard symbol may retrieve word variants: thu sach y lang xa hoi. lieu va cham ((goc va) or (loc va)) ((hanh di) OR (hanh vi)) cua tre*.