Perhaps you should try some spelling variations:
"hung toan xac slippers" » "hung tran xac slippers", "dung toan xac slippers", "hung tuan xac slippers", "hung toan ban slippers", "hung toan hoc slippers", "hung toan tap slippers", "hung toan xac slippery", "hung toan xac 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: (((("hung toan xac slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hung toan xac slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hung toan xac slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hung toan xac slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.