Talvez deva tentar algumas variações de ortografia:
complex trang » complex trans (Expandir a Pesquisa), complex trait (Expandir a Pesquisa), complex than (Expandir a Pesquisa)
metal complex » metal complexes (Expandir a Pesquisa)
combs john » coombs john (Expandir a Pesquisa), coombes john (Expandir a Pesquisa), hobbs john (Expandir a Pesquisa)
john neetu » john reetu (Expandir a Pesquisa), john neetha (Expandir a Pesquisa), john neena (Expandir a Pesquisa)
trang ngoc » tran ngoc (Expandir a Pesquisa), trong ngoc (Expandir a Pesquisa), tang ngoc (Expandir a Pesquisa)
kno carlos » knopf carlos (Expandir a Pesquisa), cano carlos (Expandir a Pesquisa), nino carlos (Expandir a Pesquisa)
0.9 nucl » 0.9 nacl (Expandir a Pesquisa), 1.9 null (Expandir a Pesquisa)
nucl kno » nacl kno (Expandir a Pesquisa), nucl eng (Expandir a Pesquisa)
l combs » e combs (Expandir a Pesquisa), _ combs (Expandir a Pesquisa), l comps (Expandir a Pesquisa)
5 metal » 5 metil (Expandir a Pesquisa), 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 combs john neetu ) or ((( 5 metal complex trang ngoc ) or ( 0.9 nucl kno carlos jose ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j l combs john neetu ) OR ((( 5 metal complex trang ngoc ) OR ( 0.9 nucl kno carlos jose )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l combs john neetu ) or ((( 5 metal complex trang ngoc ) or ( 0.9 nucl kno carlos jose ))))*.