Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"paul van so snippets" » "paul danh so snippets", "cau van so snippets", "mau van so snippets", "paul van son snippets", "paul van soa snippets", "paul van su 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: (((("paul van so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("paul van so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( paul van so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("paul van so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.