Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hat van don snippets" » "hoat van don snippets", "ha van don snippets", "hai van don snippets", "hat van dong snippets", "hat van doan snippets", "hat van dan 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 van don 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 van don snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hat van don snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hat van don snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.