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