Perhaps you should try some spelling variations:
algorithm validation » algorithm application (Expand search), algorithms evaluation (Expand search), algorithm derivation (Expand search)
section algorithm » selection algorithm (Expand search), bisection algorithm (Expand search), election algorithm (Expand search)
nesting python » using python (Expand search), nesting within (Expand search)
using nesting » using resting (Expand search), using heating (Expand search), using boosting (Expand search)
python python » pythons python (Expand search), piton python (Expand search), pitons python (Expand search)
code section » code inspection (Expand search), mode selection (Expand search), code detection (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: "(( code section algorithm validation of ) OR ( using nesting python python programming ))~".
• Adding a wildcard symbol may retrieve word variants: (( code section algorithm validation of ) OR ( using nesting python python programming ))*.