Perhaps you should try some spelling variations:
"duong mat kem snippets" » "duong ma kem snippets", "luong mat kem snippets", "duong manh kem snippets", "duong bat kiem snippets", "duong sat kiem snippets", "duong mat kem 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: (((("duong mat kem snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("duong mat kem snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duong mat kem snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duong mat kem snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.