Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khoa cong dk snippets" » "hoa cong dk snippets", "khoe cong dk snippets", "hoc cong dk snippets", "khoa cong da snippets", "khoa cong de snippets", "khoa cong dan 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 cong dk 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 cong dk snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khoa cong dk snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khoa cong dk snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.