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