Perhaps you should try some spelling variations:
"cong khoang thi snippets" » "cong khong thi snippets", "cong hoan thi snippets", "cong thong thi snippets", "cong khoang thoi snippets", "cong hoang thi snippets", "cong hoang thai snippets", "cong khoang thi 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: (((("cong khoang thi snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cong khoang thi snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong khoang thi snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong khoang thi snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.