Perhaps you should try some spelling variations:
"dung land anh slippers" » "dung luan anh slippers", "dung lam anh slippers", "dung san anh slippers", "dung lan anh slippers", "dung lanh manh slippers", "dung van anh slippers", "dung land anh slippery", "dung land anh 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"

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