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