Read the how to on marginalia. Edit, it is right beneath the search box and says: [...] A concrete example: How do I cook steak? will probably not be helpful, Steak Recipe will give better results (just Steak is pretty good too).

After that try: python datetime timestamp

or: python convert time

or something similar. Edit: see also marginalias answer next to me.

As I wrote earlier: marginalia is most for fun (although lately I have gotten better results for at least one simple technical query.)

Edit: if a search engine respects your query you can always broaden your query. If a search engine ignores your query you cannot do anything.