Talvez deva tentar algumas variações de ortografia:
centner servers » center servers (Expandir a Pesquisa), center series (Expandir a Pesquisa)
mental survey » general survey (Expandir a Pesquisa), medical survey (Expandir a Pesquisa), postal survey (Expandir a Pesquisa)
survey caused » surgery caused (Expandir a Pesquisa), survey based (Expandir a Pesquisa), survey used (Expandir a Pesquisa)
benign nevus » benign nevi (Expandir a Pesquisa), benign cells (Expandir a Pesquisa), benign neck (Expandir a Pesquisa)
nevus case » fetus case (Expandir a Pesquisa)
j centner » j center (Expandir a Pesquisa), m centner (Expandir a Pesquisa), _ entner (Expandir a Pesquisa)
j mental » j mengual (Expandir a Pesquisa), j mena (Expandir a Pesquisa), j mehta (Expandir a Pesquisa)
j benign » j benigno (Expandir a Pesquisa), a benign (Expandir a Pesquisa), 1 benign (Expandir a Pesquisa)
case dti » case data (Expandir a Pesquisa), based dti (Expandir a Pesquisa), case due (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 centner servers _ dis ) or ((( j mental survey caused _ ) or ( j benign nevus case dti ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j centner servers _ dis ) OR ((( j mental survey caused _ ) OR ( j benign nevus case dti ))))*.