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