Talvez deva tentar algumas variações de ortografia:
carlos roberto » carlos alberto (Expandir a Pesquisa)
coombes jason » coombs jason (Expandir a Pesquisa), toombs jason (Expandir a Pesquisa), coombes janine (Expandir a Pesquisa)
complex trex » complex tree (Expandir a Pesquisa), complex tetrex (Expandir a Pesquisa), complex text (Expandir a Pesquisa)
5 covalent » _ covalent (Expandir a Pesquisa), a covalent (Expandir a Pesquisa), i covalent (Expandir a Pesquisa)
l coombes » k coombes (Expandir a Pesquisa), l coomber (Expandir a Pesquisa), m coombes (Expandir a Pesquisa)
trex ngoc » trieu ngoc (Expandir a Pesquisa), tran ngoc (Expandir a Pesquisa), tien ngoc (Expandir a Pesquisa)
3.5 nacl » 0.9 nacl (Expandir a Pesquisa)
l carlos » gil carlos (Expandir a Pesquisa)
jason c » jason _ (Expandir a Pesquisa), jason a (Expandir a Pesquisa)
nacl l » nacl _ (Expandir a Pesquisa), nacl a (Expandir a Pesquisa), nacl e (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 coombes jason c ) or ((( 5 covalent complex trex ngoc ) or ( 3.5 nacl l carlos roberto ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j l coombes jason c ) OR ((( 5 covalent complex trex ngoc ) OR ( 3.5 nacl l carlos roberto )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l coombes jason c ) or ((( 5 covalent complex trex ngoc ) or ( 3.5 nacl l carlos roberto ))))*.