Perhaps you should try some spelling variations:
subsampling python » subsampling ratio (Expand search)
using subsampling » and subsampling (Expand search)
componente centro » componente dentro (Expand search), componente central (Expand search), componente lento (Expand search)
and componente » and components (Expand search), and component (Expand search), pndu componente (Expand search)
centro program » control program (Expand search), sentry program (Expand search)
python python » pythons python (Expand search), piton python (Expand search), pitons python (Expand search)
coder and » code and (Expand search), codes and (Expand search), poder and (Expand search)

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (( coder AND componente centro program ) OR ( using subsampling python python programming ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( coder and componente centro program ) OR ( using subsampling python python programming ))~".
• Adding a wildcard symbol may retrieve word variants: (( coder and componente centro program ) OR ( using subsampling python python programming ))*.