Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"cong trinh cad snippets" » "cong trinh cau snippets", "cong trinh cac snippets", "cong trinh cam snippets"
"dung mat code snippets" » "duong mat code snippets", "dung dat code snippets", "dung may code snippets", "dung rate code snippets", "dung mat co 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 mat code snippets") or ("cong trinh cad snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung mat code snippets") OR ("cong trinh cad snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( dung mat code snippets ) or ( cong trinh cad snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung mat code snippets") or ("cong trinh cad snippets"))) or ("locating bugs code snippets"))*.