Perhaps you should try some spelling variations:
"dang hoang duc snippets" » "quang hoang duc snippets", "dang cong duc snippets", "dang hung duc snippets", "dang hong duc snippets", "dang hoang duy snippets", "dang hoang du snippets", "dang hoang duc 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 ("dang hoang duc snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using c code snippets") OR ("dang hoang duc snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using c code snippets ) or ( dang hoang duc snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using c code snippets") or ("dang hoang duc snippets"))) or ("locating bug code snippets"))*.