Perhaps you should try some spelling variations:
"hoang tran dung snippets" » "hoang tuan dung snippets", "hoang thanh dung snippets", "hoang van dung snippets", "hoang tran dang snippets", "hoang tran hung snippets", "hoang tran quang snippets", "hoang tran dung slippers"
"using c code snippets" » "using lc code snippets", "using a code snippets", "using _ code snippets", "using cfd code snippets", "using c code 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 c code snippets") or ("hoang tran dung snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using c code snippets") OR ("hoang tran dung snippets"))) OR ("locating bug code snippets")).
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• Adding a wildcard symbol may retrieve word variants: (((("using c code snippets") or ("hoang tran dung snippets"))) or ("locating bug code snippets"))*.