Talvez deva tentar algumas variações de ortografia:
advanced modulation » advanced calculation (Expandir a busca), advanced oxidation (Expandir a busca)
modulation using » modulation during (Expandir a busca), population using (Expandir a busca), formulation using (Expandir a busca)
coding pitons » loading pistons (Expandir a busca)
using coding » using coping (Expandir a busca), using coating (Expandir a busca), using cooking (Expandir a busca)
pt program » pt programa (Expandir a busca), pet program (Expandir a busca), it program (Expandir a busca)
using pt » using pet (Expandir a busca), using p (Expandir a busca), using pb (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

• Remover as aspas pode possibilitar buscas mais amplas: (( advanced modulation using pt program ) OR ( using coding pitons python programming ))~.