Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lich hat do snippets" » "lich nhat do snippets", "lich han do snippets", "tich hat do snippets", "lich hat doi snippets", "lich hat dao snippets", "lich hat de 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: (((("lich hat do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lich hat do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lich hat do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lich hat do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.