Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dung ninh de snippets" » "dung vinh de snippets", "quang ninh de snippets", "dung dich de snippets", "dung sinh de snippets", "dung minh de snippets", "dung ninh duc 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: (((("dung ninh de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung ninh de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung ninh de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung ninh de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.