Perhaps you should try some spelling variations:
"dong dat trinh snippets" » "dong dan trinh snippets", "dong lap trinh snippets", "dong dat trong snippets", "dong vat trinh snippets", "dung dat trinh snippets", "dong ha trinh snippets", "dong dat trinh slippers"
"dung ung code snippets" » "dung trung code snippets", "dung quang code snippets", "dung chung code snippets", "dung ung co snippets", "dung ung 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 dat trinh snippets") or ("dung ung code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong dat trinh snippets") OR ("dung ung code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong dat trinh snippets ) or ( dung ung code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong dat trinh snippets") or ("dung ung code snippets"))) or ("locating bug code snippets"))*.