Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dat trong de snippets" » "dot trong de snippets", "vat trong de snippets", "cay trong de snippets", "dat trong den snippets", "dat trong le snippets", "dat trong he 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: (((("dat trong de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dat trong de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dat trong de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dat trong de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.