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