Talvez deva tentar algumas variações de ortografia:
current surveys » current survey (Expandir a Pesquisa)
surveys system » survey system (Expandir a Pesquisa), survey systems (Expandir a Pesquisa), surveying system (Expandir a Pesquisa)
mental nerve » ventral nerve (Expandir a Pesquisa), central nerve (Expandir a Pesquisa)
cena nerve » renal nerve (Expandir a Pesquisa), beta nerve (Expandir a Pesquisa), central nerve (Expandir a Pesquisa)
system de » system der (Expandir a Pesquisa), system delay (Expandir a Pesquisa)
case does » cases does (Expandir a Pesquisa), cause does (Expandir a Pesquisa), base does (Expandir a Pesquisa)
nerve cn » nerve can (Expandir a Pesquisa), nerve c (Expandir a Pesquisa), nerve co (Expandir a Pesquisa)
j mental » j mengual (Expandir a Pesquisa), j mena (Expandir a Pesquisa), j mehta (Expandir a Pesquisa)
cn diet » can diet (Expandir a Pesquisa), 6n diet (Expandir a Pesquisa), n diet (Expandir a Pesquisa)
a cena » na cena (Expandir a Pesquisa)

You can also try:

• Europeana
• Digital Public Library of America
• CORE

Pode obter mais resultados ajustando a pesquisa.

• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( a cena nerve cn diet ) OR ( i current surveys system de ))) OR ( j mental nerve case does ))~.
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (((( a cena nerve cn diet ) or ( i current surveys system de ))) or ( j mental nerve case does ))*.