Talvez deva tentar algumas variações de ortografia:
methyl complex » metal complex (Expandir a Pesquisa), method complex (Expandir a Pesquisa), methylase complex (Expandir a Pesquisa)
carlos negras » carlos negrao (Expandir a Pesquisa), carlos ferras (Expandir a Pesquisa), carlos negro (Expandir a Pesquisa)
complex time » complex tissue (Expandir a Pesquisa), complex tones (Expandir a Pesquisa), complex three (Expandir a Pesquisa)
kuhl carlos » gual carlos (Expandir a Pesquisa), riehl carlos (Expandir a Pesquisa), diehl carlos (Expandir a Pesquisa)
combs con » combs colin (Expandir a Pesquisa), combs john (Expandir a Pesquisa), combs cody (Expandir a Pesquisa)
nacl kuhl » nacl kcl (Expandir a Pesquisa)
con need » con nee (Expandir a Pesquisa), non need (Expandir a Pesquisa), colon need (Expandir a Pesquisa)
time non » some non (Expandir a Pesquisa)
3.5 nacl » 0.9 nacl (Expandir a Pesquisa)
l combs » e combs (Expandir a Pesquisa), _ combs (Expandir a Pesquisa), l comps (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 combs con need ) or ((( 5 methyl complex time non ) or ( 3.5 nacl kuhl carlos negras ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j l combs con need ) OR ((( 5 methyl complex time non ) OR ( 3.5 nacl kuhl carlos negras )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l combs con need ) or ((( 5 methyl complex time non ) or ( 3.5 nacl kuhl carlos negras ))))*.