Perhaps you should try some spelling variations:
"dong bieu dat slippers" » "dong hieu dat slippers", "dong dieu dat slippers", "dong tieu dat slippers", "dong bieu dac slippers", "dong lieu data slippers", "dong lieu dao slippers", "dong bieu dat slippery", "dong bieu dat 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: (((("dong bieu dat slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong bieu dat slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong bieu dat slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong bieu dat slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.