Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dua lang cua snippets" » "cua lang cua snippets", "quan lang cua snippets", "dual land cua snippets", "dua mang cua snippets", "dua hang cua snippets", "dua long cua 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: (((("dua lang cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dua lang cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dua lang cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dua lang cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.