Talvez deva tentar algumas variações de ortografia:
metal complex » metal complexes (Expandir a Pesquisa)
coombs jason » coombes jason (Expandir a Pesquisa), toombs jason (Expandir a Pesquisa), cooper jason (Expandir a Pesquisa)
complex tran » complex trans (Expandir a Pesquisa), complex than (Expandir a Pesquisa), complex trait (Expandir a Pesquisa)
nacl na2so4 » nacl caso4 (Expandir a Pesquisa)
carlos nara » carlos lara (Expandir a Pesquisa), carlos nava (Expandir a Pesquisa), carlos jara (Expandir a Pesquisa)
l coombs » l coombes (Expandir a Pesquisa), g coombs (Expandir a Pesquisa), _ coombs (Expandir a Pesquisa)
jason bs » jason bos (Expandir a Pesquisa), jason b (Expandir a Pesquisa), jason bt (Expandir a Pesquisa)
3.5 nacl » 0.9 nacl (Expandir a Pesquisa), 3 nacl (Expandir a Pesquisa)
e metal » e metas (Expandir a Pesquisa), e meta (Expandir a Pesquisa), e metanol (Expandir a Pesquisa)
ngoc » ngo (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 coombs jason bs ) or ((( e metal complex tran ngoc ) or ( 3.5 nacl na2so4 carlos nara ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j l coombs jason bs ) OR ((( e metal complex tran ngoc ) OR ( 3.5 nacl na2so4 carlos nara )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l coombs jason bs ) or ((( e metal complex tran ngoc ) or ( 3.5 nacl na2so4 carlos nara ))))*.