Perhaps you should try some spelling variations:
"using lc code snippets" » "using c code snippets", "using l code snippets", "using low code snippets", "using lbm code snippets", "using lc code slippers"
"dung tri hinh snippets" » "dung tai hinh snippets", "dung tren hinh snippets", "nhung tri hinh snippets", "dung tri kinh snippets", "dung thi hinh snippets", "dung tri tinh snippets", "dung tri hinh 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: (((("using lc code snippets") or ("dung tri hinh snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using lc code snippets") OR ("dung tri hinh snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using lc code snippets ) or ( dung tri hinh snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using lc code snippets") or ("dung tri hinh snippets"))) or ("locating bug code snippets"))*.