Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan danh co snippets" » "phan dang co snippets", "phan dinh co snippets", "phan anh co snippets", "phan danh cho snippets", "phan doanh co 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: (((("phan danh co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phan danh co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan danh co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan danh co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.