Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"le duan hon snippets" » "le dua hon snippets", "le luan hoan snippets", "le tuan hoan snippets", "le xuan hon snippets", "le dan hon snippets", "le doan 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: (((("le duan 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: (((("le duan hon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( le duan hon snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("le duan hon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.