Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan he co snippets" » "phan che co snippets", "phan h co snippets", "phan ha co snippets", "phan de co snippets", "phan ke co snippets", "phan ve co 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 he co 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 he co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan he co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan he co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.