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)
carlos joel » carlson joel (Expandir a Pesquisa), carlos jose (Expandir a Pesquisa), carlos joao (Expandir a Pesquisa)
combs john » coombs john (Expandir a Pesquisa), combes john (Expandir a Pesquisa), coombes john (Expandir a Pesquisa)
trans ngoc » tran ngoc (Expandir a Pesquisa), trang ngoc (Expandir a Pesquisa), thanh ngoc (Expandir a Pesquisa)
kbr carlos » dr carlos (Expandir a Pesquisa), cyr carlos (Expandir a Pesquisa), aybar carlos (Expandir a Pesquisa)
7.5 nacl » 3.5 nacl (Expandir a Pesquisa), 0.9 nacl (Expandir a Pesquisa)
nacl kbr » nacl nabr (Expandir a Pesquisa), nacl kcl (Expandir a Pesquisa), nacl kno (Expandir a Pesquisa)
e combs » sex combs (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 john n ) or ((( 5 methyl complex trans ngoc ) or ( 7.5 nacl kbr carlos joel ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j e combs john n ) OR ((( 5 methyl complex trans ngoc ) OR ( 7.5 nacl kbr carlos joel )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j e combs john n ) or ((( 5 methyl complex trans ngoc ) or ( 7.5 nacl kbr carlos joel ))))*.