Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dung vao thi slippers" » "dung va thi slippers", "dung van thi slippers", "dung bao thi slippers", "dung vo thi slippers", "dung dao thi slippers", "dung vao thi slippery", "dung vao thi 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 vao thi 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 vao thi slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung vao thi slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung vao thi slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.