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