Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cong cua hon snippets" » "cong cu hon snippets", "dong cua hon snippets", "huong cua hon snippets", "cong cua hoi snippets", "cong cua hoc snippets", "cong ca hon 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: (((("cong cua hon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cong cua hon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong cua hon snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong cua hon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.