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