Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"diu van den snippets" » "dieu van den snippets", "diu dan den snippets", "dinh van den snippets", "diu van de snippets", "diu van der snippets", "diu ban den 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: (((("diu van den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("diu van den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( diu van den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("diu van den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.