Perhaps you should try some spelling variations:
nao formais » nao formal (Expand Search)
aventura e » aventura de (Expand Search), aventuras de (Expand Search), aventura da (Expand Search)
viagem nao » viagem ao (Expand Search), viagem na (Expand Search), viagem nas (Expand Search)
chia yang » chia ying (Expand Search), chih yang (Expand Search), xia yang (Expand Search)
yang tang » tang tang (Expand Search), yang tan (Expand Search), yang tao (Expand Search)
tang rui » wang rui (Expand Search), yang rui (Expand Search), zhang rui (Expand Search)
e viagem » de viagem (Expand Search), a viagem (Expand Search), e viagens (Expand Search)
rui max » rui ma (Expand Search), rui mao (Expand Search), rui man (Expand Search)
e chia » e china (Expand Search), de chia (Expand Search), te chia (Expand Search)
max e » max l (Expand Search), max _ (Expand Search), max a (Expand Search)

You can also try:

• Europeana
• Digital Public Library of America
• CORE

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

• Adding a wildcard symbol may retrieve word variants: as aventura e chia yang tang rui max e viagem nao formais*.