Perhaps you should try some spelling variations:
"wang dung dat slippers" » "dang dung dat slippers", "wang dong dat slippers", "rang dung dat slippers", "wang dung va slippers", "wang dung tai slippers", "wang dung dat slippery", "wang dung dat 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: (((("wang dung dat slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("wang dung dat slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( wang dung dat slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("wang dung dat slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.