Talvez deva tentar algumas variações de ortografia:
metal complex » metal complexes (Expandir a Pesquisa)
complex text » complete text (Expandir a Pesquisa), complex tear (Expandir a Pesquisa), complex context (Expandir a Pesquisa)
carlos nejar » carlos negrao (Expandir a Pesquisa), carlos nava (Expandir a Pesquisa)
camps johan » camps joan (Expandir a Pesquisa), camps juan (Expandir a Pesquisa), aps johan (Expandir a Pesquisa)
cao carlos » caro carlos (Expandir a Pesquisa), sao carlos (Expandir a Pesquisa), cardo carlos (Expandir a Pesquisa)
johan new » johan n (Expandir a Pesquisa), johan n.a (Expandir a Pesquisa), johan ns (Expandir a Pesquisa)
text ngoc » text nlo (Expandir a Pesquisa), text non (Expandir a Pesquisa), text now (Expandir a Pesquisa)
3.5 nacl » 0.9 nacl (Expandir a Pesquisa)
nacl cao » nacl co (Expandir a Pesquisa), nacl caso4 (Expandir a Pesquisa), nacl nano (Expandir a Pesquisa)
l camps » l campos (Expandir a Pesquisa), _ camps (Expandir a Pesquisa), e camps (Expandir a Pesquisa)
5 metal » 5 methyl (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 camps johan new ) or ((( 5 metal complex text ngoc ) or ( 3.5 nacl cao carlos nejar ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j l camps johan new ) OR ((( 5 metal complex text ngoc ) OR ( 3.5 nacl cao carlos nejar )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l camps johan new ) or ((( 5 metal complex text ngoc ) or ( 3.5 nacl cao carlos nejar ))))*.