Talvez deva tentar algumas variações de ortografia:
component central » componente central (Expandir a busca), components central (Expandir a busca), components neutral (Expandir a busca)
central program » dental program (Expandir a busca), centro program (Expandir a busca), cultural program (Expandir a busca)
coating method » costing method (Expandir a busca), counting method (Expandir a busca), casting method (Expandir a busca)
and component » and components (Expandir a busca), _ component (Expandir a busca)
using coating » using coatings (Expandir a busca), using rotating (Expandir a busca), using cutting (Expandir a busca)
method python » method method (Expandir a busca), python python (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

• Caso esteja tentando utilizar os operadores booleanos, deve escrevê-los em Letras MAIÚSCULAS: (( code AND component central program ) OR ( using coating method python programming ))~.
• As palavras AND, OR e NOT pode ocasionar problemas na busca; tente utilizar as aspas: "(( code and component central program ) OR ( using coating method python programming ))~".
• Adicionar um caractere curinga pode recuperar variações da palavra buscada: (( code and component central program ) OR ( using coating method python programming ))*.