Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"voi vat de snippets" » "voi dat de snippets", "voi van de snippets", "voi nhat de snippets", "voi vat da snippets", "voi vat dien 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 vat 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: (((("voi vat de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( voi vat de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("voi vat de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.