Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dung hong ke snippets" » "duong hong ke snippets", "dung huong ke snippets", "dung khong ke snippets", "dung thong ke snippets", "dung hong ky 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: (((("dung hong ke snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung hong ke snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung hong ke snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung hong ke snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.