Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"su doi duy snippets" » "su do duy snippets", "su doi day snippets", "su doi quy snippets", "sua doi duy snippets", "su dai duy snippets", "tu doi duy snippets", "su doi duy 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: (((("su doi duy snippets") OR ("python using java snippets"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( su doi duy snippets ) or ( python using java snippets ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("su doi duy snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.