Perhaps you should try some spelling variations:
"duong tan duoc snippets" » "duong tuan duoc snippets", "duong van duoc snippets", "duong tai duoc snippets", "duong tao duoc snippets", "duong tran duc snippets", "duong da duoc snippets", "duong tan duoc 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 tan duoc 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 tan duoc snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duong tan duoc snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duong tan duoc snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.