Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dan dap cung snippets" » "dan dap ung snippets", "dan dap nhung snippets", "dan lap chung snippets", "dan dat cung snippets", "dan lap cung snippets", "dan ap cung 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: (((("dan dap cung snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dan dap cung snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dan dap cung snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan dap cung snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.