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