Perhaps you should try some spelling variations:
"ban nhanh cau snippets" » "ban hanh cau snippets", "ban thanh cau snippets", "ban nhan cau snippets", "ban nhanh cay snippets", "ban thanh chau snippets", "ban nhanh ha snippets"
"using a code snippets" » "using a core snippets"
"locating bug code snippets" » "locating bug core snippets", "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 a code snippets") or ("ban nhanh cau snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using a code snippets") OR ("ban nhanh cau snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using a code snippets ) or ( ban nhanh cau snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using a code snippets") or ("ban nhanh cau snippets"))) or ("locating bug code snippets"))*.