Talvez deva tentar algumas variações de ortografia:
during complex » ring complex (Expandir a Pesquisa)
complex tres » complex tree (Expandir a Pesquisa), complex trex (Expandir a Pesquisa), complex tris (Expandir a Pesquisa)
nano carlos » cano carlos (Expandir a Pesquisa), nino carlos (Expandir a Pesquisa), nuno carlos (Expandir a Pesquisa)
carlos nada » carlos nadaf (Expandir a Pesquisa), carlos nava (Expandir a Pesquisa), carlos nara (Expandir a Pesquisa)
campos ah » campos a (Expandir a Pesquisa), campos ana (Expandir a Pesquisa)
tres ngoc » trieu ngoc (Expandir a Pesquisa), tran ngoc (Expandir a Pesquisa), tien ngoc (Expandir a Pesquisa)
nacl nano » nacl kno (Expandir a Pesquisa), nacl nabr (Expandir a Pesquisa)
7.5 nacl » 3.5 nacl (Expandir a Pesquisa), 0.9 nacl (Expandir a Pesquisa)
ah neto » a.h neto (Expandir a Pesquisa), a neto (Expandir a Pesquisa), a.c neto (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 _ campos ah neto ) or ((( 5 during complex tres ngoc ) or ( 7.5 nacl nano carlos nada ))))~.
• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j _ campos ah neto ) OR ((( 5 during complex tres ngoc ) OR ( 7.5 nacl nano carlos nada )))).
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j _ campos ah neto ) or ((( 5 during complex tres ngoc ) or ( 7.5 nacl nano carlos nada ))))*.