Perhaps you should try some spelling variations:
"huong uoc trinh snippets" » "luong cuoc trinh snippets", "huong ung trinh snippets", "huong doi trinh snippets", "huong doc trinh snippets", "huong hoc trinh snippets", "huong quoc thinh snippets", "huong uoc trinh 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 ("huong uoc trinh snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using c code snippets") OR ("huong uoc trinh snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using c code snippets ) or ( huong uoc trinh snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using c code snippets") or ("huong uoc trinh snippets"))) or ("locating bug code snippets"))*.