Talvez deva tentar algumas variações de ortografia:
metil complex » metal complex (Expandir a Pesquisa), medial complex (Expandir a Pesquisa), metals complex (Expandir a Pesquisa)
complex trial » complex tibial (Expandir a Pesquisa), complex tropical (Expandir a Pesquisa), complex traits (Expandir a Pesquisa)
campo anion » campo andion (Expandir a Pesquisa), campo ancon (Expandir a Pesquisa), campo antoni (Expandir a Pesquisa)
carlos nada » carlos nadaf (Expandir a Pesquisa), carlos nava (Expandir a Pesquisa), carlos nara (Expandir a Pesquisa)
trial ngoa » trial noa (Expandir a Pesquisa), trial goal (Expandir a Pesquisa), trial na (Expandir a Pesquisa)
anion net » anion bedt (Expandir a Pesquisa), anion na (Expandir a Pesquisa), anion ni2 (Expandir a Pesquisa)
co carlos » fico carlos (Expandir a Pesquisa), cardo carlos (Expandir a Pesquisa), marco carlos (Expandir a Pesquisa)
3.5 nacl » 0.9 nacl (Expandir a Pesquisa)
5 metil » 5 methyl (Expandir a Pesquisa)
nacl co » nacl co2 (Expandir a Pesquisa), nacl kcl (Expandir a Pesquisa), nacl kno (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: (( _ del campo anion net ) or ((( 5 metil complex trial ngoa ) or ( 3.5 nacl co carlos nada ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( _ del campo anion net ) OR ((( 5 metil complex trial ngoa ) OR ( 3.5 nacl co carlos nada )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( _ del campo anion net ) or ((( 5 metil complex trial ngoa ) or ( 3.5 nacl co carlos nada ))))*.