Perhaps you should try some spelling variations:
"dong duoc trong slippers" » "dong nuoc trong slippers", "dong duc trong slippers", "dong luoc trong slippers", "dong quoc trong slippers", "dong duong trong slippers", "trong duoc trong slippers", "dong duoc trong slippery", "dong duoc trong grippers"
"dung java java snippets" » "dung va java snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

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 ("dong duoc trong slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("dong duoc trong slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( dong duoc trong slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("dong duoc trong slippers"))) or ("locating bug code snippets"))*.