Perhaps you should try some spelling variations:
thanh lap » thanh san, phan lap, thanh hai
van thanh » ban thanh, van tuan
su sach » so sach, vu sach
dao duc » giao duc, tao duoc
lap cua » lai cua, tap cua, lam cua
cam duc » cam xuc, cao duc, pham duc
hieu ve » hieu va, hieu van
ly van » ly va, ly von, lo van
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 ((ly van) OR (le van)) xa hoi. hieu ve ((cam duc) or (dao duc)) van thanh lap cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((ly van) OR (le van)) xa hoi. hieu ve ((cam duc) OR (dao duc)) van thanh lap cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ((ly van) OR (le van)) xa hoi. hieu ve ((cam duc) or (dao duc)) van thanh lap cua te".
• Adding a wildcard symbol may retrieve word variants: su sach ((ly van) OR (le van)) xa hoi. hieu ve ((cam duc) or (dao duc)) van thanh lap cua te*.