Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hat dan so snippets" » "hat van so snippets", "mat dan so snippets", "nhat danh so snippets", "hat dan soc snippets", "hat dan su snippets", "hat dan mo 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: (((("hat dan 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: (((("hat dan so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hat dan so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hat dan so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.