Talvez deva tentar algumas variações de ortografia:
metil complex » metal complex (Expandir a Pesquisa), medial complex (Expandir a Pesquisa), metals complex (Expandir a Pesquisa)
common virus » common viruses (Expandir a Pesquisa), common versus (Expandir a Pesquisa), common viral (Expandir a Pesquisa)
complex than » complex trait (Expandir a Pesquisa)
tio2 carlos » tio2 carbon (Expandir a Pesquisa)
carlos juca » carlos juan (Expandir a Pesquisa), carlos julio (Expandir a Pesquisa)
virus new » virus nef (Expandir a Pesquisa), virus ns3 (Expandir a Pesquisa), virus ns1 (Expandir a Pesquisa)
nacl tio2 » nacl co2 (Expandir a Pesquisa), agcl tio2 (Expandir a Pesquisa), nacl ion (Expandir a Pesquisa)
l common » el common (Expandir a Pesquisa), al common (Expandir a Pesquisa), all common (Expandir a Pesquisa)
than ngo » thang ngo (Expandir a Pesquisa), thanh ngo (Expandir a Pesquisa), thuan ngo (Expandir a Pesquisa)
3.5 nacl » 0.9 nacl (Expandir a Pesquisa)
5 metil » 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 common virus new ) or ((( 5 metil complex than ngo ) or ( 3.5 nacl tio2 carlos juca ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j l common virus new ) OR ((( 5 metil complex than ngo ) OR ( 3.5 nacl tio2 carlos juca )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l common virus new ) or ((( 5 metil complex than ngo ) or ( 3.5 nacl tio2 carlos juca ))))*.