Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dao roi can snippets" » "dao noi can snippets", "dao voi can snippets", "dao gioi can snippets", "dao loi can snippets", "dao roi loan 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: (((("dao roi can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dao roi can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dao roi can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dao roi can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.