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