Talvez deva tentar algumas variações de ortografia:
methyl complex » metal complex (Expandir a Pesquisa), method complex (Expandir a Pesquisa), methylase complex (Expandir a Pesquisa)
john bernard » cohen bernard (Expandir a Pesquisa), john maynard (Expandir a Pesquisa), laan bernard (Expandir a Pesquisa)
complex tail » complex task (Expandir a Pesquisa), complex thin (Expandir a Pesquisa), complex tap (Expandir a Pesquisa)
carlos nunes » carlos nunez (Expandir a Pesquisa), santos nunes (Expandir a Pesquisa)
nabr carlos » jair carlos (Expandir a Pesquisa), aybar carlos (Expandir a Pesquisa), bauer carlos (Expandir a Pesquisa)
combs john » coombs john (Expandir a Pesquisa), combes john (Expandir a Pesquisa), coombes john (Expandir a Pesquisa)
nacl nabr » nacl kbr (Expandir a Pesquisa), nacl nano (Expandir a Pesquisa), nacl naoh (Expandir a Pesquisa)
tail ngo » tail co (Expandir a Pesquisa), tail non (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 _ combs john bernard ) or ((( 5 methyl complex tail ngo ) or ( 3.5 nacl nabr carlos nunes ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j _ combs john bernard ) OR ((( 5 methyl complex tail ngo ) OR ( 3.5 nacl nabr carlos nunes )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j _ combs john bernard ) or ((( 5 methyl complex tail ngo ) or ( 3.5 nacl nabr carlos nunes ))))*.