Perhaps you should try some spelling variations:
"tran hanh sua snippets" » "tran thanh sua snippets", "tran manh sua snippets", "tran anh sua snippets", "tran hinh su snippets", "tran hanh va snippets", "tran hanh tu snippets", "tran hanh sua 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: (((("tran hanh sua snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tran hanh sua snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tran hanh sua snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tran hanh sua snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.