Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan hai co snippets" » "phan ha co snippets", "chan hai co snippets", "phan dai co snippets", "phan phai co snippets", "phan hai con snippets", "phan mai 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 hai 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 hai co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan hai co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan hai co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.