Perhaps you should try some spelling variations:
"dang quang dat slippers" » "dung quang dat slippers", "nang quan dat slippers", "dang hung dat slippers", "dang quang dai slippers", "dang quang dam slippers", "dang quang phat slippers", "dang quang dat slippery", "dang quang dat 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: (((("dang quang dat slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dang quang dat slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dang quang dat slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang quang dat slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.