Perhaps you should try some spelling variations:
"ung dung trong snippets" » "cung dcung trong snippets", "ung dung trong slippers"
"dcung java java snippets" » "dccung java java snippets", "dcung 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: (((("ung dung trong snippets") or ("dcung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ung dung trong snippets") OR ("dcung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ung dung trong snippets ) or ( dcung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ung dung trong snippets") or ("dcung java java snippets"))) or ("locating bug code snippets"))*.