Perhaps you should try some spelling variations:
thanh dai » thanh hai, thanh tai, thanh dat
ta thanh » tai thanh, va thanh, ha thanh
te sach » toc sach
sach tu » sach thu, cach tu, sach ty
tu song » tue song, tu dong, tu cong
song xa » song cua
cua tre » cua te, cuu tre, cua triet
va cao » va co, va bao
va dao » ca dao
duc ta » duc tan, duc tam, duc tao

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 tu song xa hoi. hieu ((((va cao) OR (va cac))) OR (va dao)) duc ta thanh dai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach tu song xa hoi. hieu ((((va cao) OR (va cac))) OR (va dao)) duc ta thanh dai cua tre".
• Adding a wildcard symbol may retrieve word variants: te sach tu song xa hoi. hieu ((((va cao) OR (va cac))) OR (va dao)) duc ta thanh dai cua tre*.