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