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"
"duy dan dat snippets" » "duy van dat snippets", "duy can dat snippets", "day dan dat snippets", "duy dung dat snippets", "duy dong dat snippets", "duy dinh dat snippets", "duy dan dat slippers"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("duy dan dat snippets") or ("python using java snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("duy dan dat snippets") OR ("python using java snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( duy dan dat snippets ) or ( python using java snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duy dan dat snippets") or ("python using java snippets"))) or ("locating bugs code snippets"))*.