Perhaps you should try some spelling variations:
"dong giao data slippers" » "dung giao data slippers", "luong giao data slippers", "thong giao data slippers", "dong giao dat slippers", "dong gian dat slippers", "dong gia dat slippers", "dong giao data slippery", "dong giao data 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: (((("dong giao data slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong giao data slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong giao data slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong giao data slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.