Perhaps you should try some spelling variations:
thanh ve » hanh ve, thanh va, thanh vien
sang kyo » sang tao, dang ky, sang cho
thanh di » thanh doi, thanh de, thanh do
cao duc » dao duc, cao suc, giao duc
hieu va » lieu va, hieu qua
sang ky » dang ky, tang ky, bang ky
va cao » va cac, va co, va dao
nang o » nang co, nang ho, nang ro
cua te » cua tu
o hoi » co hoi, o hoc, o hai

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((sang ky) or (sang kyo)) nang o hoi. hieu va cao duc va ((thanh di) or (thanh ve)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sang ky) OR (sang kyo)) nang o hoi. hieu va cao duc va ((thanh di) OR (thanh ve)) cua te.
• Adding a wildcard symbol may retrieve word variants: tu ((sang ky) or (sang kyo)) nang o hoi. hieu va cao duc va ((thanh di) or (thanh ve)) cua te*.