Perhaps you should try some spelling variations:
"trung dai tra snippets" » "truong dai tra snippets", "truong dao tra snippets", "trung tam tra snippets", "trung dan tra snippets", "trung dai thao snippets", "trung dai thua snippets", "trung dai tra slippers"
"dung java java snippets" » "dung va java snippets", "dung java java slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("trung dai tra snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trung dai tra snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trung dai tra snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trung dai tra snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.