Talvez deva tentar algumas variações de ortografia:
plc programming » c programming (Expandir a busca), block programming (Expandir a busca), _ programming (Expandir a busca)
python python » pythons python (Expandir a busca), piton python (Expandir a busca), pitons python (Expandir a busca)
decrease low » decreases low (Expandir a busca), decreases flow (Expandir a busca), decrease of (Expandir a busca)
low decrease » flow decrease (Expandir a busca), loss decrease (Expandir a busca), to decrease (Expandir a busca)
decrease plc » decrease il (Expandir a busca), decrease pro (Expandir a busca), decrease toc (Expandir a busca)
python api » python and (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

• Remover as aspas pode possibilitar buscas mais amplas: (( decrease low decrease plc programming ) OR ( python api python python programming ))~.