Perhaps you should try some spelling variations:
thu nang » thi nang, thu hang, thu bang
chu bang » thu bang, chuc nang, chu quang
ve triet » va trien, su triet
su sach » so sach, vu sach
hieu va » lieu va, hieu qua
cao duc » dao duc, cao suc, giao duc
can ban » van ban, toan ban
ma hoi » mai hoi, xa hoi, ma hoa
va cao » va cac, va co, va dao
va can » va chan, va cac, va con
ban ve » ban va

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 ((thu nang) or (chu bang)) ma hoi. hieu va cao duc va can ban ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((thu nang) OR (chu bang)) ma hoi. hieu va cao duc va can ban ve triet.
• Adding a wildcard symbol may retrieve word variants: su sach ((thu nang) or (chu bang)) ma hoi. hieu va cao duc va can ban ve triet*.