Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dung cho sinh slippers" » "dung cho dinh slippers", "dung cho minh slippers", "dung cho kinh slippers", "dung cho sinh slippery", "dung cho sinh grippers"
"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: (((("dung cho sinh slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung cho sinh slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung cho sinh slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung cho sinh slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.