Perhaps you should try some spelling variations:
"python using open snippets" » "python using opencl snippets", "python using one snippets"
"n trinh java snippets" » "p trinh java snippets", "anh trinh java snippets", "dan trinh java snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("python using open snippets") or ("n trinh java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using open snippets") OR ("n trinh java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( python using open snippets ) or ( n trinh java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using open snippets") or ("n trinh java snippets"))) or ("locating bug code snippets"))*.