Perhaps you should try some spelling variations:
"da dieu trac slippers" » "da dieu tra slippers", "da dien trac slippers", "da dieu trang slippers", "va dieu trac slippers", "dang dieu trac slippers", "doan dieu trac slippers", "da dieu trac slippery", "da dieu trac 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: (((("da dieu trac slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("da dieu trac slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( da dieu trac slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("da dieu trac slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.