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 trans » complex traits (Expandir a Pesquisa), complex trait (Expandir a Pesquisa), complex tears (Expandir a Pesquisa)
mario carlos » mario carlo (Expandir a Pesquisa), rio carlos (Expandir a Pesquisa), julio carlos (Expandir a Pesquisa)
combs icon » combs ian (Expandir a Pesquisa)
trans ngoc » tran ngoc (Expandir a Pesquisa), trang ngoc (Expandir a Pesquisa), thanh ngoc (Expandir a Pesquisa)
carlos jan » carlos juan (Expandir a Pesquisa), carlos jean (Expandir a Pesquisa), carlo jan (Expandir a Pesquisa)
icon fes » can fes (Expandir a Pesquisa)
e combs » sex combs (Expandir a Pesquisa)
nacl » natl (Expandir a Pesquisa), nac (Expandir a Pesquisa), nucl (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 e combs icon fes ) or ((( 5 methyl complex trans ngoc ) or ( 3.5 nacl mario carlos jan ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j e combs icon fes ) OR ((( 5 methyl complex trans ngoc ) OR ( 3.5 nacl mario carlos jan )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j e combs icon fes ) or ((( 5 methyl complex trans ngoc ) or ( 3.5 nacl mario carlos jan ))))*.