Talvez deva tentar algumas variações de ortografia:
leptin complex » septin complex (Expandir a Pesquisa), lectin complex (Expandir a Pesquisa), reptin complex (Expandir a Pesquisa)
boyle colin » boyle coleen (Expandir a Pesquisa), boyle colleen (Expandir a Pesquisa)
kcl carlos » kuhl carlos (Expandir a Pesquisa), gil carlos (Expandir a Pesquisa), l carlos (Expandir a Pesquisa)
colin new » coli new (Expandir a Pesquisa), colic new (Expandir a Pesquisa), colon new (Expandir a Pesquisa)
tones neo » stones new (Expandir a Pesquisa), genes neo (Expandir a Pesquisa), tones do (Expandir a Pesquisa)
4 leptin » a leptin (Expandir a Pesquisa), 1 leptin (Expandir a Pesquisa), 4 lectin (Expandir a Pesquisa)
0.9 nucl » 0.9 nacl (Expandir a Pesquisa), 1.9 null (Expandir a Pesquisa)
nucl kcl » nacl kcl (Expandir a Pesquisa), licl kcl (Expandir a Pesquisa)
negrao » negras (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 m boyle colin new ) or ((( 4 leptin complex tones neo ) or ( 0.9 nucl kcl carlos negrao ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j m boyle colin new ) OR ((( 4 leptin complex tones neo ) OR ( 0.9 nucl kcl carlos negrao )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j m boyle colin new ) or ((( 4 leptin complex tones neo ) or ( 0.9 nucl kcl carlos negrao ))))*.