Talvez deva tentar algumas variações de ortografia:
decrease their » decrease the (Expandir a busca), increase their (Expandir a busca), decreases the (Expandir a busca)
their problems » the problems (Expandir a busca)
pattern python » pattern action (Expandir a busca), pattern method (Expandir a busca)
based pattern » based battery (Expandir a busca), based plasters (Expandir a busca), mapped pattern (Expandir a busca)
python based » action based (Expandir a busca)
decrease of » decrease in (Expandir a busca)
of decrease » or decrease (Expandir a busca), not decrease (Expandir a busca), to decrease (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

• Remover as aspas pode possibilitar buscas mais amplas: (( decrease of decrease their problems ) OR ( python based pattern python programming ))~.