Perhaps you should try some spelling variations:
"cong cau code snippets" » "cong cau cong snippets", "cong cau de snippets", "cong cfd code snippets", "cong cu code snippets", "cong chuc code snippets", "thong cau code snippets", "cong cau code slippers"
"lang ha code snippets" » "long ha code snippets", "lang ha code 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: (((("lang ha code snippets") or ("cong cau code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lang ha code snippets") OR ("cong cau code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lang ha code snippets ) or ( cong cau code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lang ha code snippets") or ("cong cau code snippets"))) or ("locating bug code snippets"))*.