Talvez deva tentar algumas variações de ortografia:
center base » center based (Expandir a Pesquisa), center case (Expandir a Pesquisa), centers based (Expandir a Pesquisa)
base system » based system (Expandir a Pesquisa), base systems (Expandir a Pesquisa), based systems (Expandir a Pesquisa)
beth drive » both drive (Expandir a Pesquisa), bet drive (Expandir a Pesquisa), death drive (Expandir a Pesquisa)
system des » system der (Expandir a Pesquisa), system de (Expandir a Pesquisa), system design (Expandir a Pesquisa)
deal nerve » dual nerve (Expandir a Pesquisa), dental nerve (Expandir a Pesquisa), dermal nerve (Expandir a Pesquisa)
nerve can » nerve canal (Expandir a Pesquisa), nerve case (Expandir a Pesquisa), nerve a (Expandir a Pesquisa)
j center » j centner (Expandir a Pesquisa), 1 center (Expandir a Pesquisa), j centeno (Expandir a Pesquisa)
can dis » can disc (Expandir a Pesquisa), van dis (Expandir a Pesquisa), can die (Expandir a Pesquisa)
j deal » j dean (Expandir a Pesquisa), j dell (Expandir a Pesquisa), j deml (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: (((( j beth drive system des ) or ( j center base system des ))) or ( j deal nerve can dis ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j beth drive system des ) OR ( j center base system des ))) OR ( j deal nerve can dis )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j beth drive system des ) or ( j center base system des ))) or ( j deal nerve can dis ))*.