Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhat danh xe snippets" » "nhat hanh xe snippets", "nhat anh xe snippets", "nhat ban xe snippets", "nhat dang xet snippets", "nhat danh het snippets", "nhat danh yen 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: (((("nhat danh xe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhat danh xe snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhat danh xe snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhat danh xe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.