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