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