Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chu noi cong snippets" » "chu nguoi cong snippets", "chu tai cong snippets", "chu thi cong snippets", "chua noi cong snippets", "cau noi cong snippets", "chu nom 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: (((("chu noi cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chu noi cong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chu noi cong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chu noi cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.