Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pham danh co snippets" » "pham anh co snippets", "pham dinh co snippets", "pham hanh co snippets", "pham danh cho snippets", "pham 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: (((("pham 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: (((("pham danh co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pham danh co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pham danh co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.