Talvez deva tentar algumas variações de ortografia:
century survey » center survey (Expandir a Pesquisa), centre survey (Expandir a Pesquisa), country survey (Expandir a Pesquisa)
survey system » surgery system (Expandir a Pesquisa), prey system (Expandir a Pesquisa), grey system (Expandir a Pesquisa)
mental nerve » ventral nerve (Expandir a Pesquisa), central nerve (Expandir a Pesquisa)
nerve course » nerve crush (Expandir a Pesquisa), nerve cord (Expandir a Pesquisa), care course (Expandir a Pesquisa)
course disc » course des (Expandir a Pesquisa), course dsk (Expandir a Pesquisa), course daily (Expandir a Pesquisa)
cent nerve » bent nerve (Expandir a Pesquisa), recent nerve (Expandir a Pesquisa), crest nerve (Expandir a Pesquisa)
system dcs » system dcus (Expandir a Pesquisa), system sdcs (Expandir a Pesquisa), system des (Expandir a Pesquisa)
j mental » j mengual (Expandir a Pesquisa), j mena (Expandir a Pesquisa), j mehta (Expandir a Pesquisa)
nerve a » nerve _ (Expandir a Pesquisa)
j cent » a cent (Expandir a Pesquisa), i cent (Expandir a Pesquisa), j center (Expandir a Pesquisa)
a dis » a dos (Expandir a Pesquisa), a des (Expandir a Pesquisa), a dia (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 cent nerve a dis ) or ( a century survey system dcs ))) or ( j mental nerve course disc ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j cent nerve a dis ) OR ( a century survey system dcs ))) OR ( j mental nerve course disc ))*.