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"
"dong tu cham snippets" » "dong luc cham snippets", "thong tu cham snippets", "dong tai cham snippets", "dong toc cham snippets", "dong thi cham 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 ("dong tu cham snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using c code snippets") OR ("dong tu cham snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( using c code snippets ) or ( dong tu cham snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using c code snippets") or ("dong tu cham snippets"))) or ("locating bugs code snippets"))*.