Talvez deva tentar algumas variações de ortografia:
recurrent gram » recurrent gorham (Expandir a Pesquisa), recurrent grade (Expandir a Pesquisa), recurrent frame (Expandir a Pesquisa)
i recurrent » ii recurrent (Expandir a Pesquisa), _ recurrent (Expandir a Pesquisa), a recurrent (Expandir a Pesquisa)
gram system » gray system (Expandir a Pesquisa), graft system (Expandir a Pesquisa), grade system (Expandir a Pesquisa)
bello serve » bello serie (Expandir a Pesquisa), bellon serge (Expandir a Pesquisa), bello serna (Expandir a Pesquisa)
cent serve » stent serve (Expandir a Pesquisa), best serve (Expandir a Pesquisa), pet serve (Expandir a Pesquisa)
serve case » nerve case (Expandir a Pesquisa), service case (Expandir a Pesquisa), reserve case (Expandir a Pesquisa)
serve can » nerve can (Expandir a Pesquisa), merve can (Expandir a Pesquisa), service can (Expandir a Pesquisa)
system di » system de (Expandir a Pesquisa), system d (Expandir a Pesquisa), system dias (Expandir a Pesquisa)
can diet » can direct (Expandir a Pesquisa)
case dti » case data (Expandir a Pesquisa), based dti (Expandir a Pesquisa), case due (Expandir a Pesquisa)
j bello » j bell (Expandir a Pesquisa), buj bello (Expandir a Pesquisa)
i cent » i cento (Expandir a Pesquisa), ai cent (Expandir a Pesquisa), ii cent (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: (((( i cent serve can diet ) or ( i recurrent gram system di ))) or ( j bello serve case dti ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( i cent serve can diet ) OR ( i recurrent gram system di ))) OR ( j bello serve case dti ))*.