Talvez deva tentar algumas variações de ortografia:
metal complex » metal complexes (Expandir a Pesquisa)
sara karlson » sara karlsson (Expandir a Pesquisa), sara carlson (Expandir a Pesquisa), kara carlson (Expandir a Pesquisa)
karlson joel » carlson joel (Expandir a Pesquisa), larson joel (Expandir a Pesquisa), carlson joe (Expandir a Pesquisa)
complex tri » complex tric (Expandir a Pesquisa), complex tris (Expandir a Pesquisa), complex trs (Expandir a Pesquisa)
gomes ivan » gomez ivan (Expandir a Pesquisa), gomes ivone (Expandir a Pesquisa), gomez olivan (Expandir a Pesquisa)
ivan nieto » rivas nieto (Expandir a Pesquisa), ivan prieto (Expandir a Pesquisa), ivan pietro (Expandir a Pesquisa)
nacl sara » nacl para (Expandir a Pesquisa), nacl spray (Expandir a Pesquisa), nacl salt (Expandir a Pesquisa)
0.9 nacl » 3.5 nacl (Expandir a Pesquisa)
tri ngo » thi 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 _ gomes ivan nieto ) or ((( _ metal complex tri ngo ) or ( 0.9 nacl sara karlson joel ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j _ gomes ivan nieto ) OR ((( _ metal complex tri ngo ) OR ( 0.9 nacl sara karlson joel )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j _ gomes ivan nieto ) or ((( _ metal complex tri ngo ) or ( 0.9 nacl sara karlson joel ))))*.