Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"duc co cach snippets" » "duc co cac snippets", "duc co sach snippets", "duc ca cach snippets", "duoc co cach snippets", "duc con cach snippets", "tuc co cach 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: (((("duc co cach snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("duc co cach snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duc co cach snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duc co cach snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.