Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan tan de snippets" » "phan van de snippets", "phan tap de snippets", "phan lan de snippets", "phan toan de snippets", "phan dan de 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 tan 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: (((("phan tan de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan tan de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan tan de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.