Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhan dong da snippets" » "nhanh dong da snippets", "nhan dang da snippets", "phan dong da snippets", "nhan dong dat snippets", "nhan dong dao snippets", "nhan dong ha 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: (((("nhan dong da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhan dong da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhan dong da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhan dong da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.