Perhaps you should try some spelling variations:
"thong ngua java slippers" » "phong ngua java slippers", "thong nga java slippers", "thong nguoi java slippers", "thong ngu java slippers", "thong ngua va slippers", "thong ngua java slippery", "thong ngua java 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: (((("thong ngua 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: (((("thong ngua java slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thong ngua java slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thong ngua java slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.