Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dat phan lap slippers" » "data phan lap slippers", "dam phan lap slippers", "sat phan lap slippers", "dat phan dau slippers", "dat phan lap slippery", "dat phan lap grippers"
"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: (((("dat 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: (((("dat phan lap slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dat phan lap slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dat phan lap slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.