Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"using c code snippets" » "using lc code snippets", "using a code snippets", "using _ code snippets", "using cfd code snippets"
"dung su doi snippets" » "dung cu doi snippets", "dung du doi snippets", "dung so doi snippets", "dung sua doi snippets", "dung su dai snippets", "dung tu doi 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 ("dung su doi snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using c code snippets") OR ("dung su doi snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( using c code snippets ) or ( dung su doi snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using c code snippets") or ("dung su doi snippets"))) or ("locating bugs code snippets"))*.