Perhaps you should try some spelling variations:
"dung can tranh snippets" » "dung canh tranh snippets", "dung tan tran snippets", "dung van ranh snippets", "dung cac tranh snippets", "dung san tranh snippets", "dung van tranh snippets", "dung can tranh 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"

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 can tranh snippets") or ("dung ung code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung can tranh snippets") OR ("dung ung code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung can tranh snippets ) or ( dung ung code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung can tranh snippets") or ("dung ung code snippets"))) or ("locating bug code snippets"))*.