Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"vat li can snippets" » "vat ly can snippets", "vat lieu can snippets", "vat loi can snippets", "vat li ca snippets", "vat li yan 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: (((("vat li can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("vat li can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( vat li can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("vat li can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.