Perhaps you should try some spelling variations:
"cong hieu data snippets" » "cong lieu data snippets", "cong bieu dat snippets", "cong hieu bat snippets", "dong hieu data snippets", "cong dieu data snippets", "long hieu data snippets", "cong hieu data slippers"
"dung bug code snippets" » "dung dung code snippets", "dung hung code snippets", "dung rung code snippets", "dung bug core snippets", "dung bug code slippers"
"locating bug code snippets" » "locating bug core snippets", "locating bug code slippers"

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 bug code snippets") or ("cong hieu data snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung bug code snippets") OR ("cong hieu data snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung bug code snippets ) or ( cong hieu data snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung bug code snippets") or ("cong hieu data snippets"))) or ("locating bug code snippets"))*.