Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using c snippets" » "python using code snippets", "python using lc snippets", "python using a snippets", "python using _ snippets"
"tran trinh java snippets" » "trang trinh java snippets", "tra trinh java snippets", "thanh trinh java snippets"

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

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