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)
coder decoder » encoder decoder (Expand search)
python python » pythons python (Expand search), piton python (Expand search), pitons python (Expand search)
api python » rpa python (Expand search), manim python (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 decoder kernel estimate problem ) OR ( api python python python programming ))~".
• Adding a wildcard symbol may retrieve word variants: (( coder decoder kernel estimate problem ) OR ( api python python python programming ))*.