Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"dung cong code snippets" » "dung trong code snippets", "dung cong cong snippets", "dung cong co snippets", "dung cong che snippets", "dung cong code slippers"
"tran ngoc code snippets" » "tran quoc code snippets", "tran ngoc de snippets", "tran ngoc code slippers"

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 cong code snippets") or ("tran ngoc code snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung cong code snippets") OR ("tran ngoc code snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( dung cong code snippets ) or ( tran ngoc code snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung cong code snippets") or ("tran ngoc code snippets"))) or ("locating bugs code snippets"))*.