Talvez deva tentar algumas variações de ortografia:
primary processing » primary progressive (Expandir a busca), image processing (Expandir a busca), dairy processing (Expandir a busca)
decrease primary » decrease urinary (Expandir a busca), increased primary (Expandir a busca), disease primary (Expandir a busca)
cdc decrease » can decrease (Expandir a busca), oic decreases (Expandir a busca), pkc decreased (Expandir a busca)
piton python » pitons python (Expandir a busca), in python (Expandir a busca), with python (Expandir a busca)
python and » python based (Expandir a busca)
and piton » and piston (Expandir a busca), and pion (Expandir a busca), and iton (Expandir a busca)
code cdc » code cpc (Expandir a busca), code ctn (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

• Caso esteja tentando utilizar os operadores booleanos, deve escrevê-los em Letras MAIÚSCULAS: (( code cdc decrease primary processing ) OR ( python AND piton python programming ))~.
• As palavras AND, OR e NOT pode ocasionar problemas na busca; tente utilizar as aspas: "(( code cdc decrease primary processing ) OR ( python and piton python programming ))~".
• Adicionar um caractere curinga pode recuperar variações da palavra buscada: (( code cdc decrease primary processing ) OR ( python and piton python programming ))*.