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 vi, hanh de, hang di
cua tre » cua te, cuu tre, cua triet
y lang » o lang, _ lang, tay lang
doc va » duoc va, duc va, doc vi
loc 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: thu sach y lang xa hoi. lieu va cham ((((hoc va) or (doc va))) or (loc va)) hanh di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach y lang xa hoi. lieu va cham ((((hoc va) OR (doc va))) OR (loc va)) hanh di cua tre.
• Adding a wildcard symbol may retrieve word variants: thu sach y lang xa hoi. lieu va cham ((((hoc va) or (doc va))) or (loc va)) hanh di cua tre*.