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