Talvez deva tentar algumas variações de ortografia:
prevent serve » prevent nerve (Expandir a Pesquisa), prevents nerve (Expandir a Pesquisa), prevent stroke (Expandir a Pesquisa)
crespo serve » crespo servan (Expandir a Pesquisa), crespo sergio (Expandir a Pesquisa), crespo hervas (Expandir a Pesquisa)
mental serve » mental nerve (Expandir a Pesquisa), mental survey (Expandir a Pesquisa), mental nerves (Expandir a Pesquisa)
serve cyst » nerve cyst (Expandir a Pesquisa)
i prevent » i prevents (Expandir a Pesquisa), ii prevent (Expandir a Pesquisa), _ prevent (Expandir a Pesquisa)
serve can » nerve can (Expandir a Pesquisa), merve can (Expandir a Pesquisa), service can (Expandir a Pesquisa)
cyst dis » cyst due (Expandir a Pesquisa), cyst d (Expandir a Pesquisa)
j crespo » a crespo (Expandir a Pesquisa), d crespo (Expandir a Pesquisa), _ crespo (Expandir a Pesquisa)
j mental » j mengual (Expandir a Pesquisa), j mena (Expandir a Pesquisa), j mehta (Expandir a Pesquisa)
can dis » can disc (Expandir a Pesquisa), van dis (Expandir a Pesquisa), can die (Expandir a Pesquisa)

You can also try:

• Europeana
• Digital Public Library of America
• CORE

Pode obter mais resultados ajustando a pesquisa.

• Performing a fuzzy search may retrieve terms with similar spellings: (((( i prevent serve cyst dis ) or ( j crespo serve cyst dis ))) or ( j mental serve can dis ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( i prevent serve cyst dis ) OR ( j crespo serve cyst dis ))) OR ( j mental serve can dis )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( i prevent serve cyst dis ) or ( j crespo serve cyst dis ))) or ( j mental serve can dis ))*.