Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhap cac chu snippets" » "nhap ca chu snippets", "phap cac chu snippets", "nhan cach chu snippets", "nhap cac thu snippets", "nhap cac che snippets", "nhap cac khu 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: (((("nhap cac chu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhap cac chu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhap cac chu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhap cac chu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.