Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"python using java snippets" » "python using data snippets", "python using java slippers"
"_ duc dung snippets" » "_ duc hung snippets", "_ duc cuong snippets", "_ duc phung snippets", "_ duc dung slippers"

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: (((("_ duc dung snippets") OR ("python using java snippets"))) OR ("locating bugs code snippets"))~.
• Removing quotes may allow a broader search: (((( _ duc dung snippets ) or ( python using java snippets ))) or ( locating bugs code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("_ duc dung snippets") or ("python using java snippets"))) or ("locating bugs code snippets"))*.