Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luu lua doi snippets" » "luc luan doi snippets", "cuu luat doi snippets", "huu luat doi snippets", "luu sua doi snippets", "luu quan doi 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: (((("luu lua doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luu lua doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luu lua doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luu lua doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.