Perhaps you should try some spelling variations:
"buoi ngan java slippers" » "bo ngan java slippers", "boc ngan java slippers", "doi ngan java slippers", "buoi ngu java slippers", "buoi ngan java slippery", "buoi ngan 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: (((("buoi ngan 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: (((("buoi ngan java slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( buoi ngan java slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("buoi ngan java slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.