Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khoan cam le snippets" » "khoa cam le snippets", "khoan va le snippets", "phan cam le snippets", "khoan cac le snippets", "khoan cam ly 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: (((("khoan cam le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khoan cam le snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khoan cam le snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khoan cam le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.