Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ngon doc toc snippets" » "ngo duc toc snippets", "ngo dac toc snippets", "ngon doc cuoc snippets", "ngon doc thuc 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: (((("ngon doc toc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ngon doc toc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ngon doc toc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ngon doc toc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.