Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ban dang cn snippets" » "ban hang cn snippets", "ban dan cn snippets", "van dang cn snippets", "ban dang ca snippets", "ban dang co snippets", "ban dang cong 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: (((("ban dang cn snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ban dang cn snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ban dang cn snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ban dang cn snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.