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