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