Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nom van do snippets" » "nam van do snippets", "tom van do snippets", "gom van do snippets", "nom van dao snippets", "nom van de snippets", "nom van du 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: (((("nom van do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nom van do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nom van do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nom van do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.