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