Perhaps you should try some spelling variations:
thanh lai » thanh hai, thanh lap, thanh loi
van thanh » ban thanh, van tuan
va triet » va thiet, va trien, ve triet
sach ty » sach y, sach tu, sach thu
cao duc » dao duc, cao suc, giao duc
tu sach » thu sach, su sach, te sach
hieu va » lieu va, hieu qua
ty nang » ky nang, ty xang, ty hang
cam duc » cam xuc, pham duc, nam duoc
lai va » loai va, mai va, dai va
x hoi » xa hoi, o hoi, 5 hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ty nang ((x hoi) or (x ho)). hieu va ((cam duc) or (cao duc)) van thanh lai va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty nang ((x hoi) OR (x ho)). hieu va ((cam duc) OR (cao duc)) van thanh lai va triet.
• Adding a wildcard symbol may retrieve word variants: tu sach ty nang ((x hoi) or (x ho)). hieu va ((cam duc) or (cao duc)) van thanh lai va triet*.