Perhaps you should try some spelling variations:
"dong cac code snippets" » "dong cac cong snippets", "dong cac co snippets", "dong cac che snippets", "duong cac code snippets", "dong bac code snippets", "dung cac code snippets", "dong cac code slippers"
"chung cu code snippets" » "chung cfd code snippets", "nhung cu code snippets", "cung cu code snippets", "chung cu 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: (((("chung cu code snippets") or ("dong cac code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chung cu code snippets") OR ("dong cac code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chung cu code snippets ) or ( dong cac code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chung cu code snippets") or ("dong cac code snippets"))) or ("locating bug code snippets"))*.