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 mining » complex making (Expandir a Pesquisa), complex mating (Expandir a Pesquisa), complex moving (Expandir a Pesquisa)
mining ngoc » mining non (Expandir a Pesquisa), mining neo (Expandir a Pesquisa)
carlos nara » carlos lara (Expandir a Pesquisa), carlos nava (Expandir a Pesquisa), carlos jara (Expandir a Pesquisa)
sao carlos » joao carlos (Expandir a Pesquisa)
comps los » comps la (Expandir a Pesquisa)
nacl sao » nacl salt (Expandir a Pesquisa), nacl nano (Expandir a Pesquisa), nacl naoh (Expandir a Pesquisa)
l comps » m comps (Expandir a Pesquisa)
los net » loss net (Expandir a Pesquisa), los neo (Expandir a Pesquisa), los new (Expandir a Pesquisa)

You can also try:

• Europeana
• Digital Public Library of America
• CORE

Pode obter mais resultados ajustando a pesquisa.

• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j l comps los net ) OR ((( 5 methyl complex mining ngoc ) OR ( 3.5 nacl sao carlos nara ))))~.
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l comps los net ) or ((( 5 methyl complex mining ngoc ) or ( 3.5 nacl sao carlos nara ))))*.