Talvez deva tentar algumas variações de ortografia:
regina carlson » regina caruso (Expandir a Pesquisa), regina cardoso (Expandir a Pesquisa), regina carla (Expandir a Pesquisa)
complex trait » complex traits (Expandir a Pesquisa)
pal complex » apical complex (Expandir a Pesquisa), metal complex (Expandir a Pesquisa), basal complex (Expandir a Pesquisa)
nacl regina » nacken regina (Expandir a Pesquisa)
john potts » john potter (Expandir a Pesquisa), john pote (Expandir a Pesquisa), john watts (Expandir a Pesquisa)
trait can » traits can (Expandir a Pesquisa), trait a (Expandir a Pesquisa), gait can (Expandir a Pesquisa)
j cooper » _ cooper (Expandir a Pesquisa), i cooper (Expandir a Pesquisa), m cooper (Expandir a Pesquisa)
7.5 nacl » 3.5 nacl (Expandir a Pesquisa), 0.9 nacl (Expandir a Pesquisa)
5 pal » 5 palm (Expandir a Pesquisa), _ pal (Expandir a Pesquisa), k pal (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 j cooper john potts ) or ((( 5 pal complex trait can ) or ( 7.5 nacl regina carlson john ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j j cooper john potts ) OR ((( 5 pal complex trait can ) OR ( 7.5 nacl regina carlson john )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j j cooper john potts ) or ((( 5 pal complex trait can ) or ( 7.5 nacl regina carlson john ))))*.