Perhaps you should try some spelling variations:
"dung diem chet snippets" » "dung dien chet snippets", "dung de chet snippets", "dung dich chet snippets", "dung diem chay snippets", "dung diem viet snippets", "dung dieu che snippets"
"dung java java snippets" » "dung va java snippets"
"locating bug code snippets" » "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 diem chet snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung diem chet snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung diem chet snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung diem chet snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.