Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dua lang ca snippets" » "cua lang ca snippets", "quan lang ca snippets", "dual land ca snippets", "dua lang cua snippets", "dua lang cao snippets", "dua hang ca 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 ca 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 ca snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dua lang ca snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dua lang ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.