Talvez deva tentar algumas variações de ortografia:
coomber jason » coombes jason (Expandir a Pesquisa), cooper jason (Expandir a Pesquisa), coombs jason (Expandir a Pesquisa)
metal complex » metal complexes (Expandir a Pesquisa)
complex than » complex trait (Expandir a Pesquisa)
jaime carlos » jair carlos (Expandir a Pesquisa), jaime carmona (Expandir a Pesquisa)
carlos nejar » carlos negrao (Expandir a Pesquisa), carlos nava (Expandir a Pesquisa)
l coomber » l cooper (Expandir a Pesquisa), k coombes (Expandir a Pesquisa)
than ngoc » thanh ngoc (Expandir a Pesquisa), thuan ngoc (Expandir a Pesquisa), tran ngoc (Expandir a Pesquisa)
7.5 nacl » 3.5 nacl (Expandir a Pesquisa), 0.9 nacl (Expandir a Pesquisa)
jason a » jason _ (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 coomber jason a ) or ((( 5 metal complex than ngoc ) or ( 7.5 nacl jaime carlos nejar ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j l coomber jason a ) OR ((( 5 metal complex than ngoc ) OR ( 7.5 nacl jaime carlos nejar )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l coomber jason a ) or ((( 5 metal complex than ngoc ) or ( 7.5 nacl jaime carlos nejar ))))*.