Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luat cac noi snippets" » "luat can noi snippets", "luat cau noi snippets", "xuat cac noi snippets", "luat cach noi snippets", "luat cac toi 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: (((("luat cac noi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luat cac noi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luat cac noi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luat cac noi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.