Talvez deva tentar algumas variações de ortografia:
methylation complex » demethylation complex (Expandir a Pesquisa), methylation coupled (Expandir a Pesquisa), acetylation complex (Expandir a Pesquisa)
carlos mora » carlos morales (Expandir a Pesquisa), carlos moreira (Expandir a Pesquisa), carlos moreno (Expandir a Pesquisa)
coles john » cole john (Expandir a Pesquisa), holmes john (Expandir a Pesquisa), coates john (Expandir a Pesquisa)
co carlos » fico carlos (Expandir a Pesquisa), caro carlos (Expandir a Pesquisa), cardo carlos (Expandir a Pesquisa)
john new » john agnew (Expandir a Pesquisa), john neil (Expandir a Pesquisa), john noel (Expandir a Pesquisa)
than nga » thanh nga (Expandir a Pesquisa), tran nga (Expandir a Pesquisa), phan nga (Expandir a Pesquisa)
0.9 nacl » 3.5 nacl (Expandir a Pesquisa)
l coles » l cole (Expandir a Pesquisa), l coley (Expandir a Pesquisa), l collet (Expandir a Pesquisa)
nacl co » nacl co2 (Expandir a Pesquisa), nacl kcl (Expandir a Pesquisa), nacl kno (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 coles john new ) or ((( dna methylation complex than nga ) or ( 0.9 nacl co carlos mora ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j l coles john new ) OR ((( dna methylation complex than nga ) OR ( 0.9 nacl co carlos mora )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l coles john new ) or ((( dna methylation complex than nga ) or ( 0.9 nacl co carlos mora ))))*.