Perhaps you should try some spelling variations:
"hoang tran trac slippers" » "hoang tuan trac slippers", "hoang thanh trac slippers", "hoang van trac slippers", "hoang toan trac slippers", "hoang trang trai slippers", "hoang tan tran slippers", "hoang tran trac slippery", "hoang tran trac 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: (((("hoang tran trac slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoang tran trac slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoang tran trac slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoang tran trac slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.