Perhaps you should try some spelling variations:
"tung sinh trinh snippets" » "tung dinh trinh snippets", "tung hanh trinh snippets", "tung sinh trung snippets", "tung hinh trinh snippets", "dung sinh trinh snippets", "vung sinh trinh snippets", "tung sinh trinh slippers"
"dung java java snippets" » "dung va java snippets", "dung java java slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core 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: (((("tung sinh trinh snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tung sinh trinh snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tung sinh trinh snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tung sinh trinh snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.