Talvez deva tentar algumas variações de ortografia:
coombes jason » coombs jason (Expandir a Pesquisa), toombs jason (Expandir a Pesquisa), coombes janine (Expandir a Pesquisa)
set1 complex » pat1 complex (Expandir a Pesquisa), t1 complex (Expandir a Pesquisa), mre11 complex (Expandir a Pesquisa)
complex tres » complex tree (Expandir a Pesquisa), complex trex (Expandir a Pesquisa), complex tris (Expandir a Pesquisa)
carlos nejar » carlos negrao (Expandir a Pesquisa), carlos nava (Expandir a Pesquisa)
nacl na2so4 » nacl caso4 (Expandir a Pesquisa)
m coombes » k coombes (Expandir a Pesquisa), l coomber (Expandir a Pesquisa)
tres ngoc » trieu ngoc (Expandir a Pesquisa), tran ngoc (Expandir a Pesquisa), tien ngoc (Expandir a Pesquisa)
jason a » jason _ (Expandir a Pesquisa)
5 set1 » _ set1 (Expandir a Pesquisa), a set1 (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 jason a ) or ((( 5 set1 complex tres ngoc ) or ( 0.9 nacl na2so4 carlos nejar ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j m coombes jason a ) OR ((( 5 set1 complex tres ngoc ) OR ( 0.9 nacl na2so4 carlos nejar ))))*.