Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dung ninh vi slippers" » "dung vinh vi slippers", "quang ninh vi slippers", "dung dich vi slippers", "dung dinh vi slippers", "dung tinh vi slippers", "dung ninh viet slippers", "dung ninh vi slippery", "dung ninh vi 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 ninh vi 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 ninh vi slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung ninh vi slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung ninh vi slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.