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