Perhaps you should try some spelling variations:
"dong tranh khai slippers" » "dong thanh khai slippers", "dong trinh khai slippers", "trong tranh khai slippers", "dong tranh thai slippers", "dong tranh chap slippers", "dong tranh khai slippery", "dong tranh khai 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 tranh khai 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 tranh khai slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong tranh khai slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong tranh khai slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.