Perhaps you should try some spelling variations:
"cao cong code snippets" » "cao cong cong snippets", "cao cong co snippets", "cao cong che snippets", "cac cong code snippets", "cao dang code snippets", "cua cong code snippets"
"trong cac code snippets" » "trong cac cong snippets", "trong cac co snippets", "trong cac che snippets"
"locating bug code slippers" » "locating bung code slippers", "locating bugs 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: (((("trong cac code snippets") or ("cao cong code snippets"))) or ("locating bug code slippers"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trong cac code snippets") OR ("cao cong code snippets"))) OR ("locating bug code slippers")).
• Removing quotes may allow a broader search: (((( trong cac code snippets ) or ( cao cong code snippets ))) or ( locating bug code slippers )).
• Adding a wildcard symbol may retrieve word variants: (((("trong cac code snippets") or ("cao cong code snippets"))) or ("locating bug code slippers"))*.