Talvez deva tentar algumas variações de ortografia:
company based » competency based (Expandir a Pesquisa)
complex tran » complex trans (Expandir a Pesquisa), complex than (Expandir a Pesquisa), complex trait (Expandir a Pesquisa)
oil complex » cell complex (Expandir a Pesquisa)
can company » bain company (Expandir a Pesquisa), a company (Expandir a Pesquisa), ramon company (Expandir a Pesquisa)
romero da » romero a (Expandir a Pesquisa), romero de (Expandir a Pesquisa), romero d (Expandir a Pesquisa)
based no2 » based non (Expandir a Pesquisa), based noc (Expandir a Pesquisa), based nod (Expandir a Pesquisa)
l romero » a romero (Expandir a Pesquisa)
da net » da neto (Expandir a Pesquisa), da new (Expandir a Pesquisa), da nee (Expandir a Pesquisa)
5 oil » _ oil (Expandir a Pesquisa), 5 il (Expandir a Pesquisa), l oil (Expandir a Pesquisa)
_ can » _ cat (Expandir a Pesquisa)

You can also try:

• Europeana
• Digital Public Library of America
• CORE

Pode obter mais resultados ajustando a pesquisa.

• Se usar operadores Booleanos, por favor insira-os com letras MAIÚSCULAS: (( j l romero da net ) OR ((( 5 oil complex tran (ngoc OR ngo) ) OR ( _ can company based no2 ))))~.
• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(( j l romero da net ) or ((( 5 oil complex tran (ngoc OR ngo) ) or ( _ can company based no2 ))))~".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j l romero da net ) or ((( 5 oil complex tran (ngoc OR ngo) ) or ( _ can company based no2 ))))*.