Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhan con ca snippets" » "nhan co ca snippets", "nhanh cong ca snippets", "phan cong ca snippets", "nhan con cua snippets", "nhan con cac snippets", "nhan cong ca 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 con ca 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 con ca snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhan con ca snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhan con ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.