Perhaps you should try some spelling variations:
thanh dai » thanh hai, thanh tai, thanh dat
van thanh » ban thanh, van tuan
cam duc » cam xuc, pham duc, nam duoc
sach tu » sach thu, cach tu, sach ty
cao duc » dao duc, cao suc, giao duc
hieu ve » hieu va, hieu van
sach lo » sach dao, sach doi, sach hoi
ang xa » lang xa, mang xa, dang xay
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: su ((sach lo) or (sach tu)) ang xa hoi. hieu ve ((cam duc) or (cao duc)) van thanh dai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach lo) OR (sach tu)) ang xa hoi. hieu ve ((cam duc) OR (cao duc)) van thanh dai cua te.
• Adding a wildcard symbol may retrieve word variants: su ((sach lo) or (sach tu)) ang xa hoi. hieu ve ((cam duc) or (cao duc)) van thanh dai cua te*.