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