Perhaps you should try some spelling variations:
"trong danh bat slippers" » "trong doanh bat slippers", "truong danh bat slippers", "trong anh bat slippers", "trong anh bai slippers", "trong dinh ba slippers", "trong danh bat slippery", "trong danh bat 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: (((("trong danh bat slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trong danh bat slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trong danh bat slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trong danh bat slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.