Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pham luc tu slippers" » "pham duc tu slippers", "pham cuc tu slippers", "pham luan tu slippers", "pham luc tu slippery", "pham luc tu grippers"
"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: (((("pham luc tu slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("pham luc tu slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pham luc tu slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pham luc tu slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.