Perhaps you should try some spelling variations:
thanh hai » thanh phan, thanh hoa, thanh san
va thanh » gia thanh, ban thanh, va tinh
te sach » toc sach
hai cua » thai cua, dai cua, hoi cua
hieu va » lieu va, hieu qua
cua tre » cua te, cuu tre, cua triet
hieu ve » hieu van
ly hang » ly quang
ty hang » ty xang, thi hang, thu hang
soc va » hoc va, loc va, doc va

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 ((ty hang) OR (ly hang)) xa hoi. ((hieu ve) or (hieu va)) cham soc va thanh hai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((ty hang) OR (ly hang)) xa hoi. ((hieu ve) OR (hieu va)) cham soc va thanh hai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((ty hang) OR (ly hang)) xa hoi. ((hieu ve) or (hieu va)) cham soc va thanh hai cua tre".
• Adding a wildcard symbol may retrieve word variants: te sach ((ty hang) OR (ly hang)) xa hoi. ((hieu ve) or (hieu va)) cham soc va thanh hai cua tre*.