Perhaps you should try some spelling variations:
"han ngu java snippets" » "han ngu va snippets", "nhat ngu java snippets"
"python using c snippets" » "python using lc snippets", "python using a snippets", "python using _ snippets"
"locating bug code snippets" » "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: (((("python using c snippets") OR ("han ngu java snippets"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( python using c snippets ) or ( han ngu java snippets ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("python using c snippets") or ("han ngu java snippets"))) or ("locating bug code snippets"))*.