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