Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dao ngay do snippets" » "dau ngay do snippets", "dao nga do snippets", "chao ngay do snippets", "dao ngay doc snippets", "dao ngay de snippets", "dao ngay moi 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 ngay do 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 ngay do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dao ngay do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dao ngay do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.