Perhaps you should try some spelling variations:
pheromone complete » pheromone components (Expand search), pheromone component (Expand search), performance complete (Expand search)
complete control » complexity control (Expand search), computer control (Expand search), concrete control (Expand search)
coded pheromone » biased pheromone (Expand search), heated pheromone (Expand search)
python python » pythons python (Expand search), piton python (Expand search), pitons python (Expand search)
using python » usando python (Expand search), in python (Expand search)
using using » housing using (Expand search), aging using (Expand search), ring using (Expand search)

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "(( coded pheromone complete control program ) OR ( using using python python programming ))~".
• Adding a wildcard symbol may retrieve word variants: (( coded pheromone complete control program ) OR ( using using python python programming ))*.