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