Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dung cp quy slippers" » "dung co quy slippers", "dung cu quy slippers", "dung dcpx quy slippers", "dung cp quy slippery", "dung cp quy 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 cp quy 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 cp quy slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung cp quy slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung cp quy slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.