Perhaps you should try some spelling variations:
"doan phan lap slippers" » "doanh phan lap slippers", "toan phan lap slippers", "dan phan lap slippers", "doan phan dau slippers", "doan phan lap slippery", "doan phan lap 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: (((("doan phan lap slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doan phan lap slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doan phan lap slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doan phan lap slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.