Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nghe ma le snippets" » "nghe may le snippets", "nghe va le snippets", "nghe dan le snippets", "nghe mac le snippets", "nghe ha le 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: (((("nghe ma le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nghe ma le snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nghe ma le snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nghe ma le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.