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