Talvez deva tentar algumas variações de ortografia:
complex trex » complex tree (Expandir a Pesquisa), complex tetrex (Expandir a Pesquisa), complex text (Expandir a Pesquisa)
set3 complex » set1 complex (Expandir a Pesquisa), set complex (Expandir a Pesquisa), stat3 complex (Expandir a Pesquisa)
combs anion » combs brandon (Expandir a Pesquisa), combs allison (Expandir a Pesquisa), combs daniel (Expandir a Pesquisa)
nano carlos » cano carlos (Expandir a Pesquisa), nino carlos (Expandir a Pesquisa), nuno carlos (Expandir a Pesquisa)
carlos mota » carlos motta (Expandir a Pesquisa), carlos mora (Expandir a Pesquisa), carlos moya (Expandir a Pesquisa)
anion net » anion bedt (Expandir a Pesquisa), anion na (Expandir a Pesquisa), anion ni2 (Expandir a Pesquisa)
trex ngoa » trieu ngoa (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)
e combs » sex combs (Expandir a Pesquisa)
5 set3 » _ set3 (Expandir a Pesquisa), 5 sets (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 e combs anion net ) OR ((( 5 set3 complex trex ngoa ) OR ( 7.5 nacl nano carlos mota ))))~.
• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(( j e combs anion net ) OR ((( 5 set3 complex trex ngoa ) OR ( 7.5 nacl nano carlos mota ))))".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j e combs anion net ) OR ((( 5 set3 complex trex ngoa ) OR ( 7.5 nacl nano carlos mota ))))*.