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