Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dao noi can snippets" » "dau noi can snippets", "dao voi can snippets", "nao noi can snippets", "dao loi can snippets", "dao roi can 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 noi 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 noi can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dao noi can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dao noi can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.