Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"danh mo di snippets" » "dan mo di snippets", "danh co di snippets", "danh o di snippets", "danh mo dai snippets", "danh so di snippets", "danh mo de 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: (((("danh mo di snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("danh mo di snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( danh mo di snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("danh mo di snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.