Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"do hoai den snippets" » "do hoat den snippets", "do hoi den snippets", "do loai den snippets", "do hoa den snippets", "do hai den snippets", "doi thoai den 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: (((("do hoai den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("do hoai den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( do hoai den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("do hoai den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.