Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"kieu van do snippets" » "hieu van do snippets", "sieu van do snippets", "lieu van do snippets", "kieu van dao snippets", "kieu van de snippets", "kieu 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: (((("kieu 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: (((("kieu van do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( kieu van do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("kieu van do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.