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