Perhaps you should try some spelling variations:
function improvement » functional improvement (Expand search), function impairment (Expand search), production improvement (Expand search)
coder functions » power functions (Expand search), order functions (Expand search), colour functions (Expand search)
functions java » functions data (Expand search), functions and (Expand search), functions are (Expand search)
cooking python » cooking method (Expand search)
java function » java functions (Expand search), gama function (Expand search), lana function (Expand search)
using cooking » reusing cooking (Expand search), during cooking (Expand search), using docking (Expand search)
python python » pythons python (Expand search), piton python (Expand search), pitons python (Expand search)

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( coder functions java function improvement ) OR ( using cooking python python programming ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( coder functions java function improvement ) OR ( using cooking python python programming ))*".