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