Perhaps you should try some spelling variations:
"dung chung code snippets" » "dung cong code snippets", "dung trung code snippets", "truong chung code snippets", "dung chung co snippets", "dung chung code slippers"
"dung data phan snippets" » "dung dat phan snippets", "dung dan phan snippets", "dung dau phan snippets", "dung dam phan snippets", "dung sat phan snippets", "dung vat phan snippets", "dung data phan slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code 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 code snippets") or ("dung data phan snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung chung code snippets") OR ("dung data phan snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung chung code snippets ) or ( dung data phan snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung chung code snippets") or ("dung data phan snippets"))) or ("locating bug code snippets"))*.