Perhaps you should try some spelling variations:
"hoang tran cao snippets" » "hoang tuan cao snippets", "hoang thanh cao snippets", "hoang van cao snippets", "hoang toan cao snippets", "hoang tran chau snippets", "hoang trang cho 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 ("hoang tran cao snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using a code snippets") OR ("hoang tran cao snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using a code snippets ) or ( hoang tran cao snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using a code snippets") or ("hoang tran cao snippets"))) or ("locating bug code snippets"))*.