Talvez deva tentar algumas variações de ortografia:
active systemic » acute systemic (Expandir a Pesquisa)
patient active » patients active (Expandir a Pesquisa), patient activated (Expandir a Pesquisa), patient practice (Expandir a Pesquisa)
absent nerve » bent nerve (Expandir a Pesquisa), abducent nerve (Expandir a Pesquisa), augment nerve (Expandir a Pesquisa)
systemic dis » systemic does (Expandir a Pesquisa), systemic dose (Expandir a Pesquisa), systemic dna (Expandir a Pesquisa)
cent nerve » bent nerve (Expandir a Pesquisa), recent nerve (Expandir a Pesquisa), crest nerve (Expandir a Pesquisa)
j patient » j pariente (Expandir a Pesquisa), j patino (Expandir a Pesquisa), j parent (Expandir a Pesquisa)
_ absent » _ absence (Expandir a Pesquisa)
nerve i » nerve _ (Expandir a Pesquisa), nerve a (Expandir a Pesquisa)
j cent » a cent (Expandir a Pesquisa), i cent (Expandir a Pesquisa), j center (Expandir a Pesquisa)
i die » _ die (Expandir a Pesquisa), i din (Expandir a Pesquisa), i did (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 i die ) or ((( _ absent nerve i die ) or ( j patient active systemic dis ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j cent nerve i die ) OR ((( _ absent nerve i die ) OR ( j patient active systemic dis )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j cent nerve i die ) or ((( _ absent nerve i die ) or ( j patient active systemic dis ))))*.