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