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