Talvez deva tentar algumas variações de ortografia:
communications using » communications in (Expandir a busca), communications and (Expandir a busca), communications plan (Expandir a busca)
and communications » and communication (Expandir a busca)
coding pitons » loading pistons (Expandir a busca)
arpa program » marca program (Expandir a busca), cria program (Expandir a busca), agua program (Expandir a busca)
using coding » using coping (Expandir a busca), using coating (Expandir a busca), using cooking (Expandir a busca)
using arpa » using arma (Expandir a busca), using rpa (Expandir a busca), using arima (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

• Remover as aspas pode possibilitar buscas mais amplas: (( and communications using arpa program ) OR ( using coding pitons python programming ))*.