Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"anh tu robot slippers" » "anh tao robot slippers", "anh tay robot slippers", "anh _ robot slippers", "anh tuan robot slippers", "anh tu robot slippery", "anh tu robot grippers"
"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: (((("anh tu 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: (((("anh tu robot slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( anh tu robot slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("anh tu robot slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.