Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doan thu cao snippets" » "doanh thu cao snippets", "doan thuc cao snippets", "doan thi cao snippets", "doan thu bao snippets", "doan thu lao 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 thu cao 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 thu cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doan thu cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doan thu cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.