Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"len tot den snippets" » "len troi den snippets", "luan tot den snippets", "len thoi den snippets", "len tat den snippets", "len hoat den snippets", "len tot lien 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: (((("len tot 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: (((("len tot den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( len tot den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("len tot den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.