Perhaps you should try some spelling variations:
"dusing java java snippets" » "using java java snippets"
"ngan ngu java slippers" » "ngan ngua java slippers", "ngon ngu java slippers", "nhan ngu java slippers", "ngan ngu va slippers", "ngan ngu java slippery", "ngan 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: (((("ngan 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: (((("ngan ngu java slippers") OR ("dusing java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ngan ngu java slippers ) or ( dusing java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ngan ngu java slippers") or ("dusing java java snippets"))) or ("locating bug code snippets"))*.