Talvez deva tentar algumas variações de ortografia:
centner phase » center phase (Expandir a Pesquisa), centre phase (Expandir a Pesquisa), cancer phase (Expandir a Pesquisa)
mental nerve » ventral nerve (Expandir a Pesquisa), renal nerve (Expandir a Pesquisa)
bett drive » belt drive (Expandir a Pesquisa), bet drive (Expandir a Pesquisa), belt drives (Expandir a Pesquisa)
system de » system der (Expandir a Pesquisa), system delay (Expandir a Pesquisa)
j centner » j center (Expandir a Pesquisa), m centner (Expandir a Pesquisa), _ entner (Expandir a Pesquisa)
nerve can » merve can (Expandir a Pesquisa), nerve cat (Expandir a Pesquisa), nerve cn (Expandir a Pesquisa)
j mental » j mengual (Expandir a Pesquisa), j mehta (Expandir a Pesquisa), j mena (Expandir a Pesquisa)
can dis » can disc (Expandir a Pesquisa), van dis (Expandir a Pesquisa), can die (Expandir a Pesquisa)
j bett » j betts (Expandir a Pesquisa), j beth (Expandir a Pesquisa), j beta (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 bett drive system de ) or ( j centner phase system de ))) or ( j mental nerve can dis ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j bett drive system de ) OR ( j centner phase system de ))) OR ( j mental nerve can dis )).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( j bett drive system de ) or ( j centner phase system de ))) or ( j mental nerve can dis ))*.