Perhaps you should try some spelling variations:
"cong trinh code snippets" » "cong trinh cong snippets", "cong trinh co snippets", "cong trinh cad snippets", "cong trinh code slippers"
"dong duoc dat snippets" » "dong quoc dat snippets", "dong duong dat snippets", "trong duoc dat snippets", "dong duoc bat snippets", "dong duoc dai snippets", "dong duoc dan snippets", "dong duoc dat slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code 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: (((("dong duoc dat snippets") or ("cong trinh code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong duoc dat snippets") OR ("cong trinh code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong duoc dat snippets ) or ( cong trinh code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong duoc dat snippets") or ("cong trinh code snippets"))) or ("locating bug code snippets"))*.