Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luc doi doi snippets" » "luoc doi doi snippets", "lua doi doi snippets", "luc moi doi snippets", "luc doi voi snippets", "luc doi moi snippets", "luc voi 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: (((("luc doi 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: (((("luc doi doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luc doi doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luc doi doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.