Perhaps you should try some spelling variations:
"dong cung code snippets" » "dong chung code snippets", "dong hung code snippets", "dong cong code snippets", "dong cung code slippers"
"dung hieu data snippets" » "dong hieu data snippets", "dung tieu data snippets", "trung hieu data snippets", "dung lieu data snippets", "dung bieu dat snippets", "dung hieu bat snippets", "dung hieu data slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code 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: (((("dong cung code snippets") or ("dung hieu data snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong cung code snippets") OR ("dung hieu data snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong cung code snippets ) or ( dung hieu data snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong cung code snippets") or ("dung hieu data snippets"))) or ("locating bug code snippets"))*.