Perhaps you should try some spelling variations:
"da lieu data slippers" » "da lieu dao slippers", "da bieu dat slippers", "da lieu da slippers", "du lieu data slippers", "da dieu data slippers", "vat lieu data slippers", "da lieu data slippery", "da lieu 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"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("da lieu 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: (((("da lieu data slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( da lieu data slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("da lieu data slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.