Perhaps you should try some spelling variations:
"dung dat sheng slippers" » "dung dat hang slippers", "dung dat phong slippers", "dung gao sheng slippers", "dung va sheng slippers", "dung tai sheng slippers", "dung dat sheng slippery", "dung dat sheng 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 dat sheng 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 dat sheng slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung dat sheng slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung dat sheng slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.