Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"can van duc slippers" » "cac van duc slippers", "can ban duc slippers", "tan van duc slippers", "can van duy slippers", "can van du slippers", "can tran duc slippers", "can van duc slippery", "can van duc grippers"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("can van 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: (((("can van duc slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( can van duc slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("can van duc slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.