Perhaps you should try some spelling variations:
"dong trinh tin snippets" » "cong trinh tin snippets", "dong tinh tin snippets", "dong tranh tin snippets", "dong trinh kinh snippets", "dong trinh toan snippets", "dong trinh tu snippets", "dong trinh tin slippers"
"dung trong code snippets" » "dung trong cong snippets", "dung trong co snippets", "dung trong che snippets", "dung trong code slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("dong trinh tin snippets") or ("dung trong code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong trinh tin snippets") OR ("dung trong code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong trinh tin snippets ) or ( dung trong code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong trinh tin snippets") or ("dung trong code snippets"))) or ("locating bug code snippets"))*.