Perhaps you should try some spelling variations:
"cong thuc code snippets" » "cong tac code snippets", "cong thuc co snippets", "cong thuc con snippets", "cong thuc code slippers"
"trong cay code snippets" » "trong cac code snippets", "trong ca code snippets", "giong cay code snippets", "trong cay co snippets", "trong cay cong snippets", "trong cay coc snippets", "trong cay code slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("cong thuc code snippets") or ("trong cay code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cong thuc code snippets") OR ("trong cay code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong thuc code snippets ) or ( trong cay code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong thuc code snippets") or ("trong cay code snippets"))) or ("locating bug code snippets"))*.