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