Perhaps you should try some spelling variations:
"cong duong thuc snippets" » "cong luong thuc snippets", "cong duong thu snippets", "cong duong thuy snippets", "cuong duong thuc snippets", "cong dong thuc snippets", "con duong thuc snippets", "cong duong thuc 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: (((("dung java java snippets") or ("cong duong thuc snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("cong duong thuc snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( cong duong thuc snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("cong duong thuc snippets"))) or ("locating bug code snippets"))*.