Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dung mam non snippets" » "dung lam non snippets", "dung may non snippets", "dung nam non snippets", "dung may nong snippets", "dung lam nong snippets", "dung tam nong 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 mam non 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 mam non snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung mam non snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung mam non snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.