Perhaps you should try some spelling variations:
"nong tinh java slippers" » "cong tinh java slippers", "dong tinh java slippers", "long tinh java slippers", "nong trinh java slippers", "nong think java slippers", "nong tinh va slippers", "nong tinh java slippery", "nong tinh 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: (((("nong tinh 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: (((("nong tinh java slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nong tinh java slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nong tinh java slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.