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 dang » complex padang (Expandir a Pesquisa), complex dance (Expandir a Pesquisa), complex data (Expandir a Pesquisa)
nacl serrano » nadal serrano (Expandir a Pesquisa), a.l serrano (Expandir a Pesquisa), sael serrano (Expandir a Pesquisa)
carlos noe » carlos nobre (Expandir a Pesquisa), carlos nojek (Expandir a Pesquisa), carlos n (Expandir a Pesquisa)
l coomber » l cooper (Expandir a Pesquisa), k coombes (Expandir a Pesquisa)
jason bob » jason bobe (Expandir a Pesquisa), jason boo (Expandir a Pesquisa), jason bos (Expandir a Pesquisa)
dang ngoc » hoang ngoc (Expandir a Pesquisa), quang ngoc (Expandir a Pesquisa), anh ngoc (Expandir a Pesquisa)
0.9 nacl » 3.5 nacl (Expandir a Pesquisa)
e metal » e meta (Expandir a Pesquisa), e metas (Expandir a Pesquisa), e metanol (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 bob ) or ((( e metal complex dang ngoc ) or ( 0.9 nacl serrano carlos noe ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j l coomber jason bob ) OR ((( e metal complex dang ngoc ) OR ( 0.9 nacl serrano carlos noe )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l coomber jason bob ) or ((( e metal complex dang ngoc ) or ( 0.9 nacl serrano carlos noe ))))*.