Perhaps you should try some spelling variations:
fraction coding » action coding (Expand search), fraction according (Expand search), fraction using (Expand search)
and programming » _ programming (Expand search), goal programming (Expand search)
power fraction » power fractional (Expand search), power function (Expand search), power action (Expand search)
teaching with » teaching work (Expand search)
coding and » coding rna (Expand search)

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (( power fraction coding AND programming ) OR ( learning teaching with python programming ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( power fraction coding and programming ) OR ( learning teaching with python programming ))~".
• Adding a wildcard symbol may retrieve word variants: (( power fraction coding and programming ) OR ( learning teaching with python programming ))*.