Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khoa bi hoi snippets" » "khoa bai hoi snippets", "khoa bim hoi snippets", "khoan bai hoi snippets", "khoa bia hoi snippets", "khoa bi hai snippets", "khoa bi hoa 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 bi hoi 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 bi hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khoa bi hoi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khoa bi hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.