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