Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dap cong mot snippets" » "tap cong mot snippets", "dai cong mot snippets", "dam cong mot snippets", "dap cong dot snippets", "dap trong mot snippets", "dap cong mong 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 cong mot 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 cong mot snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dap cong mot snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dap cong mot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.