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