Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"len roi can snippets" » "len troi can snippets", "len ngoi can snippets", "len choi can snippets", "len voi can snippets", "len loi can snippets", "len roi loan 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 roi can 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 roi can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( len roi can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("len roi can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.