Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"co duoc den snippets" » "co duoc dien snippets", "co duoc dan snippets", "co duoc dong snippets", "tao duoc den snippets", "hoa duoc den snippets", "hoc duoc den 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: (((("co duoc den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("co duoc den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets"))*.
• Removing quotes may allow a broader search: (((( co duoc den snippets ) or ( python using java snippets ))) or ( locating bug code snippets ))*.