Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan hoa dot snippets" » "phan loai dot snippets", "khanh hoa dot snippets", "phan phoi dot snippets", "phan hoa doi snippets", "phan hoa dat snippets", "phan hoa doc 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 hoa dot 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 hoa dot snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan hoa dot snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan hoa dot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.