Talvez deva tentar algumas variações de ortografia:
prevent serie » prevent sterile (Expandir a Pesquisa), prevent serious (Expandir a Pesquisa), prevent steroid (Expandir a Pesquisa)
bent nervous » get nervous (Expandir a Pesquisa), cental nervous (Expandir a Pesquisa), center nervous (Expandir a Pesquisa)
best served » best serve (Expandir a Pesquisa), best observed (Expandir a Pesquisa), better served (Expandir a Pesquisa)
served cyst » nerve cyst (Expandir a Pesquisa), derived cysts (Expandir a Pesquisa), observed cost (Expandir a Pesquisa)
system dan » system data (Expandir a Pesquisa), system dias (Expandir a Pesquisa), system der (Expandir a Pesquisa)
serie van » sarie van (Expandir a Pesquisa), herrie van (Expandir a Pesquisa), teorie van (Expandir a Pesquisa)
van dis » van die (Expandir a Pesquisa), van diest (Expandir a Pesquisa), van dijk (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: (( _ prevent serie van dis ) or ((( j best served cyst due ) or ( j bent nervous system dan ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( _ prevent serie van dis ) OR ((( j best served cyst due ) OR ( j bent nervous system dan )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( _ prevent serie van dis ) or ((( j best served cyst due ) or ( j bent nervous system dan ))))*.