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