Talvez deva tentar algumas variações de ortografia:
center errors » center terrorist (Expandir a Pesquisa), letters errors (Expandir a Pesquisa), chapter errors (Expandir a Pesquisa)
errors cause » errors caused (Expandir a Pesquisa), error caused (Expandir a Pesquisa), error causes (Expandir a Pesquisa)
senal nerve » renal nerve (Expandir a Pesquisa), senal merve (Expandir a Pesquisa), spinal nerve (Expandir a Pesquisa)
bent nerve » absent nerve (Expandir a Pesquisa), mental nerve (Expandir a Pesquisa), dental nerve (Expandir a Pesquisa)
cause des » cause de (Expandir a Pesquisa), cause dna (Expandir a Pesquisa)
nerve can » nerve canal (Expandir a Pesquisa), nerve a (Expandir a Pesquisa)
a center » a century (Expandir a Pesquisa)
i senal » i sena (Expandir a Pesquisa), i segnali (Expandir a Pesquisa), i seminal (Expandir a Pesquisa)
can dcs » can tdcs (Expandir a Pesquisa), can dce (Expandir a Pesquisa), can dags (Expandir a Pesquisa)
case di » case dti (Expandir a Pesquisa), case d (Expandir a Pesquisa), case de (Expandir a Pesquisa)
j bent » j benet (Expandir a Pesquisa), j bento (Expandir a Pesquisa), j bena (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: (((( a center errors cause des ) or ( i senal nerve can dcs ))) or ( j bent nerve case di ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( a center errors cause des ) OR ( i senal nerve can dcs ))) OR ( j bent nerve case di ))*.