Talvez deva tentar algumas variações de ortografia:
patient negative » patients negative (Expandir a Pesquisa), potent negative (Expandir a Pesquisa), patients relative (Expandir a Pesquisa)
negative cyst » negative cystic (Expandir a Pesquisa), negative chest (Expandir a Pesquisa), negative case (Expandir a Pesquisa)
cena nerve » renal nerve (Expandir a Pesquisa), beta nerve (Expandir a Pesquisa), central nerve (Expandir a Pesquisa)
nerve cyst » nerve case (Expandir a Pesquisa), nerve cat (Expandir a Pesquisa), nerve system (Expandir a Pesquisa)
bena nerve » beta nerve (Expandir a Pesquisa), bent nerve (Expandir a Pesquisa), renal nerve (Expandir a Pesquisa)
l patient » al patient (Expandir a Pesquisa), ill patient (Expandir a Pesquisa), all patient (Expandir a Pesquisa)
cyst dis » cyst d (Expandir a Pesquisa)
i cena » a cena (Expandir a Pesquisa), _ cena (Expandir a Pesquisa), e cena (Expandir a Pesquisa)
j bena » j bela (Expandir a Pesquisa), j bent (Expandir a Pesquisa), j benham (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 cena nerve cyst dis ) or ((( j bena nerve cyst due ) or ( l patient negative cyst dis ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( i cena nerve cyst dis ) OR ((( j bena nerve cyst due ) OR ( l patient negative cyst dis )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( i cena nerve cyst dis ) or ((( j bena nerve cyst due ) or ( l patient negative cyst dis ))))*.