Talvez deva tentar algumas variações de ortografia:
ventral serve » ventral nerve (Expandir a Pesquisa), central server (Expandir a Pesquisa), central service (Expandir a Pesquisa)
center serve » center servers (Expandir a Pesquisa), center service (Expandir a Pesquisa), center survey (Expandir a Pesquisa)
benign beate » benign beale (Expandir a Pesquisa), benign base (Expandir a Pesquisa), benign late (Expandir a Pesquisa)
serve cyst » nerve cyst (Expandir a Pesquisa), nerve cystic (Expandir a Pesquisa)
beate cyst » beate st (Expandir a Pesquisa), thecate cyst (Expandir a Pesquisa)
2 ventral » _ ventral (Expandir a Pesquisa), a ventral (Expandir a Pesquisa)
j center » j centner (Expandir a Pesquisa), 2 center (Expandir a Pesquisa), 19 center (Expandir a Pesquisa)
cyst dis » cyst due (Expandir a Pesquisa), cyst d (Expandir a Pesquisa), cyst dna (Expandir a Pesquisa)
2 benign » _ benign (Expandir a Pesquisa), a benign (Expandir a Pesquisa), 1 benign (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 center serve cyst dis ) or ( 2 ventral serve _ dcs ))) or ( 2 benign beate cyst dis ))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (((( j center serve cyst dis ) OR ( 2 ventral serve _ dcs ))) OR ( 2 benign beate cyst dis ))*.