Perhaps you should try some spelling variations:
"dusing java java snippets" » "using java java snippets", "dusing java java slippers"
"den tinh java snippets" » "den trinh java snippets", "den think java snippets", "den tinh va snippets", "yen tinh java snippets", "diep tinh java snippets", "den thanh java snippets", "den tinh 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: (((("dusing java java snippets") or ("den tinh java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dusing java java snippets") OR ("den tinh java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dusing java java snippets ) or ( den tinh java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dusing java java snippets") or ("den tinh java snippets"))) or ("locating bug code snippets"))*.