Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"ruc hoi nhap snippets" » "ruc hoi dap snippets", "ruc moi nhat snippets", "quoc hoi nhap snippets", "phuc hoi nhap snippets", "duoc hoi nhap snippets", "ruc hoi nhap slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("ruc hoi nhap snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ruc hoi nhap snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ruc hoi nhap snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ruc hoi nhap snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.