Perhaps you should try some spelling variations:
"dung doi ham slippers" » "dung doi ham slices", "huong doi ham slippers", "dung tai ham slippers", "dung co ham slippers", "dung doi nam slippers", "dung do ham slippers", "dung doi dam slippers"
"python using java snippets" » "python using data 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: (((("python using java snippets") or ("dung doi ham slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("dung doi ham slippers"))) OR ("locating bug code snippets")).
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• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("dung doi ham slippers"))) or ("locating bug code snippets"))*.