Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan co mot snippets" » "phan bo mot snippets", "phan cong mot snippets", "phan cac mot snippets", "phan cho mot snippets", "phan com mot snippets", "phan co dot 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 co mot 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 co mot snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan co mot snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan co mot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.