Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"phuong phap cac snippets" » "phuong phap cach snippets", "phuong phan cac snippets", "phuong pha cac snippets", "huong phap cac snippets"
"locating bug code snippets" » "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: (((("phuong phap cac snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phuong phap cac snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phuong phap cac snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phuong phap cac snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.