Talvez deva tentar algumas variações de ortografia:
methyl complex » metal complex (Expandir a Pesquisa), method complex (Expandir a Pesquisa), methylase complex (Expandir a Pesquisa)
complex tail » complex trait (Expandir a Pesquisa), complex task (Expandir a Pesquisa), complex thin (Expandir a Pesquisa)
cacl carlos » calil carlos (Expandir a Pesquisa), cacho carlos (Expandir a Pesquisa), casal carlos (Expandir a Pesquisa)
comes can » homes can (Expandir a Pesquisa), comes carne (Expandir a Pesquisa), comes clean (Expandir a Pesquisa)
nacl cacl » nacl kcl (Expandir a Pesquisa)
can cope » can come (Expandir a Pesquisa), can co (Expandir a Pesquisa)
tail non » tailed non (Expandir a Pesquisa), tail bond (Expandir a Pesquisa), tail can (Expandir a Pesquisa)
3.5 nacl » 0.9 nacl (Expandir a Pesquisa)
l comes » l comps (Expandir a Pesquisa), l coles (Expandir a Pesquisa), l comas (Expandir a Pesquisa)
nunez » nunes (Expandir a Pesquisa)

You can also try:

• Europeana
• Digital Public Library of America
• CORE

Pode obter mais resultados ajustando a pesquisa.

• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j l comes can cope ) OR ((( 5 methyl complex tail non ) OR ( 3.5 nacl cacl carlos nunez ))))~.
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l comes can cope ) or ((( 5 methyl complex tail non ) or ( 3.5 nacl cacl carlos nunez ))))*.