Talvez deva tentar algumas variações de ortografia:
current valve » current value (Expandir a Pesquisa), recurrent valve (Expandir a Pesquisa), current values (Expandir a Pesquisa)
centre nere » centre mere (Expandir a Pesquisa), centre where (Expandir a Pesquisa), centre nord (Expandir a Pesquisa)
bento nerve » bent nerve (Expandir a Pesquisa), benign nerve (Expandir a Pesquisa)
valve case » valve caused (Expandir a Pesquisa), valve based (Expandir a Pesquisa), valve cusp (Expandir a Pesquisa)
j current » j currently (Expandir a Pesquisa), j curran (Expandir a Pesquisa), j currell (Expandir a Pesquisa)
case goes » care goes (Expandir a Pesquisa), age goes (Expandir a Pesquisa), jose goes (Expandir a Pesquisa)
ai centre » ai centri (Expandir a Pesquisa), bi centre (Expandir a Pesquisa), ii centre (Expandir a Pesquisa)
nere case » nerve case (Expandir a Pesquisa), nerve cases (Expandir a Pesquisa), snare case (Expandir a Pesquisa)
nerve cat » nerve can (Expandir a Pesquisa), nerve case (Expandir a Pesquisa), nerve a (Expandir a Pesquisa)
case dti » case data (Expandir a Pesquisa), based dti (Expandir a Pesquisa), case due (Expandir a Pesquisa)
j bento » j benito (Expandir a Pesquisa), j benton (Expandir a Pesquisa), j benson (Expandir a Pesquisa)
cat dis » cat did (Expandir a Pesquisa), cat diets (Expandir a Pesquisa), cat diet (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 current valve case goes ) or ( ai centre nere case dti ))) or ( j bento nerve cat dis ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j current valve case goes ) OR ( ai centre nere case dti ))) OR ( j bento nerve cat dis ))*.