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 thi code snippets" » "dung tai code snippets", "dung tri code snippets", "dung chi code snippets", "dung thi cong snippets", "dung thi hoe 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 thi 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 thi code snippets") OR ("cong trinh cad snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( dung thi code snippets ) or ( cong trinh cad snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung thi code snippets") or ("cong trinh cad snippets"))) or ("locating bugs code snippets"))*.