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