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