Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"duc vy cach snippets" » "duc va cach snippets", "duc ve cach snippets", "duc ky cach snippets", "duc sy cach snippets", "duc y 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 vy 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 vy cach snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duc vy cach snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duc vy cach snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.