Perhaps you should try some spelling variations:
"dusing java java slippers" » "using java java slippers", "dusing java java slippery", "dusing java java grippers"
"dung ngu java snippets" » "dung nga java snippets", "dung ngo java snippets", "dung nguoi java snippets", "dung ngu va 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: (((("dusing java java slippers") or ("dung ngu java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dusing java java slippers") OR ("dung ngu java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dusing java java slippers ) or ( dung ngu java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dusing java java slippers") or ("dung ngu java snippets"))) or ("locating bug code snippets"))*.