Talvez deva tentar algumas variações de ortografia:
methyl complex » metal complex (Expandir a Pesquisa), method complex (Expandir a Pesquisa), methylase complex (Expandir a Pesquisa)
use computers » _ computers (Expandir a Pesquisa)
computers can » computers a (Expandir a Pesquisa), computers _ (Expandir a Pesquisa)
company rare » company rafel (Expandir a Pesquisa), company case (Expandir a Pesquisa), company age (Expandir a Pesquisa)
complex can » complex case (Expandir a Pesquisa), complex care (Expandir a Pesquisa), complex cell (Expandir a Pesquisa)
bad company » a company (Expandir a Pesquisa), gas company (Expandir a Pesquisa), lncd company (Expandir a Pesquisa)
can now » can non (Expandir a Pesquisa), can ngoc (Expandir a Pesquisa)
j use » rj use (Expandir a Pesquisa), _ use (Expandir a Pesquisa), a use (Expandir a Pesquisa)
a bad » _ bad (Expandir a Pesquisa)

You can also try:

• Europeana
• Digital Public Library of America
• CORE

Pode obter mais resultados ajustando a pesquisa.

• "As palabras AND, OR e NOT podem gerar pesquisas incorrectas; tente utilizar aspas": "(( j use computers can new ) OR ((( 5 methyl complex can now ) OR ( a bad company rare non ))))~".
• Se adicionar um carácter universal pode recuperar variações da palavra pesquisada: (( j use computers can new ) OR ((( 5 methyl complex can now ) OR ( a bad company rare non ))))*.