Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dong ninh ho snippets" » "dong kinh ho snippets", "dung ninh ho snippets", "dong tinh ho snippets", "dong ninh hoa snippets", "dong dinh ho snippets", "dong linh ho snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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

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