Perhaps you should try some spelling variations:
"hoang tran viet snippets" » "hoang tuan viet snippets", "hoang thanh viet snippets", "hoang van viet snippets", "hoang trien viet snippets", "hoang gian viet snippets", "hoang san viet snippets", "hoang tran viet slippers"
"using a code snippets" » "using a core snippets", "using a 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 a code snippets") or ("hoang tran viet 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 viet snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using a code snippets ) or ( hoang tran viet snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using a code snippets") or ("hoang tran viet snippets"))) or ("locating bug code snippets"))*.