Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"cong thuc code snippets" » "cong tac code snippets", "cong thuc co snippets", "cong thuc con snippets", "cong thuc code slippers"
"dung de code snippets" » "dung he code snippets", "dung dat code snippets", "dung de code slippers"

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: (((("dung de code snippets") or ("cong thuc code snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung de code snippets") OR ("cong thuc code snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( dung de code snippets ) or ( cong thuc code snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung de code snippets") or ("cong thuc code snippets"))) or ("locating bugs code snippets"))*.