Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"dung cong co snippets" » "dung trong co snippets", "dung dong co snippets", "dung cong cu snippets", "dung cong so snippets"
"van trinh java snippets" » "van thinh java snippets", "van tinh java snippets", "dan trinh java snippets"

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