Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dap quan den snippets" » "tap quan den snippets", "dan quan den snippets", "dao quan den snippets", "dap quan doan snippets", "dap quan he snippets", "dap quan doi 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: (((("dap quan den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dap quan den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dap quan den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dap quan den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.