Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan mat can snippets" » "phan may can snippets", "phan vat can snippets", "phan xuat can snippets", "phan bat can snippets", "phan mat dan snippets", "phan mao can 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 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: (((("phan mat can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan mat can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan mat can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.