Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan mat hop snippets" » "phan may hop snippets", "phan vat hop snippets", "phan xuat hop snippets", "phan mau hop snippets", "phan luat hop snippets", "phan chat hop 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: (((("phan mat hop snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phan mat hop snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan mat hop snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan mat hop snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.