Perhaps you should try some spelling variations:
estimate problem » estimation problem (Expand search), intimate problems (Expand search), state problem (Expand search)
kernel estimate » kernel estimates (Expand search), kernel estimator (Expand search), kernel estimation (Expand search)
python python » pythons python (Expand search), piton python (Expand search), pytm python (Expand search)
coder kernel » order kernels (Expand search), modelo kernel (Expand search), corn kernel (Expand search)
coder coder » coder decoder (Expand search), code code (Expand search), decoder codec (Expand search)
pitons » citons (Expand search), pitoni (Expand search), pitoes (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: "(( coder coder kernel estimate problem ) OR ( api pitons python python programming ))~".
• Adding a wildcard symbol may retrieve word variants: (( coder coder kernel estimate problem ) OR ( api pitons python python programming ))*.