Perhaps you should try some spelling variations:
thu bang » thu ban, thu hang, chu bang
van dinh » van minh, van dich, xuan dinh
sach thu » sach thue, sach thieu, sach tham
te sach » toc sach
vai cua » dai cua, hai cua, lai cua
va dinh » va kinh, va tinh, vu dinh
cua tre » cua te, cuu tre, cua triet
mo thuc » mot thuc, do thuc, so thuc
co thuc » do thuc, co thua, so thuc
hieu va » lieu va, hieu qua
bang xa » lang xa, bang va, mang xa

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach thu bang xa hoi. hieu va ((co thuc) OR (mo thuc)) ((va dinh) or (van dinh)) vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach thu bang xa hoi. hieu va ((co thuc) OR (mo thuc)) ((va dinh) OR (van dinh)) vai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach thu bang xa hoi. hieu va ((co thuc) OR (mo thuc)) ((va dinh) or (van dinh)) vai cua tre".
• Adding a wildcard symbol may retrieve word variants: te sach thu bang xa hoi. hieu va ((co thuc) OR (mo thuc)) ((va dinh) or (van dinh)) vai cua tre*.