Perhaps you should try some spelling variations:
"dao doi trinh slippers" » "dao doc trinh slippers", "dao doi tinh slippers", "dao dong trinh slippers", "dao do trinh slippers", "dao noi trinh slippers", "dao voi trinh slippers", "dao doi trinh slippery", "dao doi trinh 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: (((("dao doi trinh slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dao doi trinh slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dao doi trinh slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dao doi trinh slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.