Perhaps you should try some spelling variations:
"dung xuan dan slippers" » "duong xuan dan slippers", "dung luan dan slippers", "dung quan dan slippers", "dung xuan can slippers", "dung xuan tan slippers", "dung xuan dam slippers", "dung xuan dan slippery", "dung xuan dan grippers"
"dung java java snippets" » "dung va java 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 xuan dan slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung xuan dan slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung xuan dan slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung xuan dan slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.