Perhaps you should try some spelling variations:
"cong hang cau snippets" » "cong thang cau snippets", "cong hung cau snippets", "cong lang cau snippets", "cong hang dau snippets", "cong hang ca snippets", "cong nhung cau snippets"
"cong dung cac snippets" » "cuong dung cac snippets", "cong dong cac snippets", "cong luong cac snippets", "cong dung cho snippets", "cong dung tai 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: (((("cong hang cau snippets") or ("cong dung cac snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cong hang cau snippets") OR ("cong dung cac snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong hang cau snippets ) or ( cong dung cac snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong hang cau snippets") or ("cong dung cac snippets"))) or ("locating bug code snippets"))*.