Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhat danh mo snippets" » "nhat hanh mo snippets", "nhat anh mo snippets", "nhat ban mo snippets", "nhat dan mo snippets", "nhat danh co snippets", "nhat danh o 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 mo 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 mo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhat danh mo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhat danh mo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.