Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoc co trong slippers" » "hoc ro trong slippers", "hoc ca trong slippers", "hoc go trong slippers", "hoc cao trong slippers", "hoc co trong slippery", "hoc co trong grippers"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("hoc co trong slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoc co trong slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoc co trong slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc co trong slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.