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