Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"duc luoc can snippets" » "duc quoc can snippets", "deus luoc can snippets", "duc luong can snippets", "duc luc canh snippets", "duc hoc can snippets", "duc luoc dai 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 luoc 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 luoc can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duc luoc can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duc luoc can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.