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