Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"duc so doc snippets" » "duc mo doc snippets", "duc sy doc snippets", "duc so do snippets", "duc so dac snippets", "duc so do8 snippets"
"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: (((("duc so doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("duc so doc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duc so doc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duc so doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.