Talvez deva tentar algumas variações de ortografia:
metal complex » metal complexes (Expandir a Pesquisa)
coombes john » coombs john (Expandir a Pesquisa), combes john (Expandir a Pesquisa), coombes jason (Expandir a Pesquisa)
complex tras » complex trans (Expandir a Pesquisa), complex tris (Expandir a Pesquisa), complex trs (Expandir a Pesquisa)
carlos nejar » carlos negrao (Expandir a Pesquisa), carlos nava (Expandir a Pesquisa)
jair carlos » jr carlos (Expandir a Pesquisa), mir carlos (Expandir a Pesquisa), junior carlos (Expandir a Pesquisa)
m coombes » k coombes (Expandir a Pesquisa), l coomber (Expandir a Pesquisa)
tras ngoc » tran ngoc (Expandir a Pesquisa), tram ngoc (Expandir a Pesquisa), tra ngoc (Expandir a Pesquisa)
nacl jair » nacl nabr (Expandir a Pesquisa)
john new » john agnew (Expandir a Pesquisa), john neil (Expandir a Pesquisa), john n (Expandir a Pesquisa)
0.9 nacl » 3.5 nacl (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 m coombes john new ) or ((( 5 metal complex tras ngoc ) or ( 0.9 nacl jair carlos nejar ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j m coombes john new ) OR ((( 5 metal complex tras ngoc ) OR ( 0.9 nacl jair carlos nejar )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j m coombes john new ) or ((( 5 metal complex tras ngoc ) or ( 0.9 nacl jair carlos nejar ))))*.