Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"voi ban den snippets" » "doi ban den snippets", "voi can den snippets", "moi ban den snippets", "voi ban dan snippets", "voi quan 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: (((("voi ban 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: (((("voi ban den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( voi ban den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("voi ban den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.