Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"duc he can snippets" » "duc hue can snippets", "duc ha can snippets", "muc he can snippets", "duc he dan snippets", "duc he van snippets", "duc he cac 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 he 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: (((("duc he can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duc he can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duc he can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.