Talvez deva tentar algumas variações de ortografia:
user programming » based programming (Expandir a busca), pair programming (Expandir a busca), r programming (Expandir a busca)
decrease user » increase user (Expandir a busca), decreased use (Expandir a busca), decrease after (Expandir a busca)
estudo pitons » estudo piloto (Expandir a busca), estudo pos (Expandir a busca), estudo pilo (Expandir a busca)
decrease at » decrease akt (Expandir a busca), decrease and (Expandir a busca), decrease in (Expandir a busca)
at decrease » rate decrease (Expandir a busca), that decrease (Expandir a busca), and decrease (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

• Remover as aspas pode possibilitar buscas mais amplas: (( decrease at decrease user programming ) OR ( python estudo pitons python programming ))~.