Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doan gia cua snippets" » "dan gia cua snippets", "doanh giao cua snippets", "doanh giai cua snippets", "doan gian cua snippets", "doan giau cua snippets", "doan gia cuc 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: (((("doan gia cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doan gia cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doan gia cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doan gia cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.