Perhaps you should try some spelling variations:
"van dai nhat slices" » "van dai ham slices", "van dang nhat slices", "van moi nhat slices", "van dai han slices", "vanh dai nhat slices", "van dao nhat slices", "van hai nhat slices"
"python using java snippets" » "python using data snippets", "python using java slippers"
"locating bug code snippets" » "locating bug code slippers", "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.

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("van dai nhat slices"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( van dai nhat slices ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("van dai nhat slices"))) or ("locating bug code snippets"))*.