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