Perhaps you should try some spelling variations:
implemented control » implement control (Expand search), implementing control (Expand search), implementar controlar (Expand search)
clustering python » clustering method (Expand search), clustering methods (Expand search), clustering pattern (Expand search)
using clustering » and clustering (Expand search), means clustering (Expand search)
and implemented » and implement (Expand search), and implements (Expand search), and implementing (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 implemented control program ) OR ( using clustering python python programming ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( coder and implemented control program ) OR ( using clustering python python programming ))~".
• Adding a wildcard symbol may retrieve word variants: (( coder and implemented control program ) OR ( using clustering python python programming ))*.