Talvez deva tentar algumas variações de ortografia:
centers coupled » center coupler (Expandir a Pesquisa), centers could (Expandir a Pesquisa), centers compared (Expandir a Pesquisa)
coupled stone » coupled histone (Expandir a Pesquisa), coupled bone (Expandir a Pesquisa), coupled state (Expandir a Pesquisa)
diehl carlos » riehl carlos (Expandir a Pesquisa), diehl charles (Expandir a Pesquisa), diego carlos (Expandir a Pesquisa)
nacl diehl » nacl diet (Expandir a Pesquisa), marcel diehl (Expandir a Pesquisa)
5 centers » 57 centers (Expandir a Pesquisa), _ centers (Expandir a Pesquisa), 2 centers (Expandir a Pesquisa)
stone non » stones non (Expandir a Pesquisa), stone cone (Expandir a Pesquisa), stone tony (Expandir a Pesquisa)
l combs » e combs (Expandir a Pesquisa), _ combs (Expandir a Pesquisa), l comps (Expandir a Pesquisa)
colin d » colin a (Expandir a Pesquisa)
3 nacl » _ nacl (Expandir a Pesquisa), m nacl (Expandir a Pesquisa), 3.5 nacl (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 l combs colin d ) or ((( 5 centers coupled stone non ) or ( 3 nacl diehl carlos negrao ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j l combs colin d ) OR ((( 5 centers coupled stone non ) OR ( 3 nacl diehl carlos negrao )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l combs colin d ) or ((( 5 centers coupled stone non ) or ( 3 nacl diehl carlos negrao ))))*.