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