Perhaps you should try some spelling variations:
"dong anh tran snippets" » "dong anh tuan snippets", "dong anh toan snippets", "dong anh trac snippets", "hong anh tran snippets", "dong thanh tran snippets", "hoang anh tran snippets", "dong anh tran slippers"
"using 3 code snippets" » "using 3d code snippets", "using a code snippets", "using _ code snippets", "using 3 core snippets", "using 3 code slippers"
"locating bug code snippets" » "locating bug core 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 3 code snippets") or ("dong anh tran snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using 3 code snippets") OR ("dong anh tran snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using 3 code snippets ) or ( dong anh tran snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using 3 code snippets") or ("dong anh tran snippets"))) or ("locating bug code snippets"))*.