Perhaps you should try some spelling variations:
pheromone compliant » pheromone component (Expand search), pheromone components (Expand search)
compliant control » compliance control (Expand search), compliance controle (Expand search), complexity control (Expand search)
coded pheromone » biased pheromone (Expand search), heated pheromone (Expand search)
using pitons » using pion (Expand search), using pivots (Expand search), using mertons (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 compliant control program ) OR ( using using pitons python programming ))~".
• Adding a wildcard symbol may retrieve word variants: (( coded pheromone compliant control program ) OR ( using using pitons python programming ))*.