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