Perhaps you should try some spelling variations:
"thong cau code snippets" » "thong cac code snippets", "thong cap code snippets", "thong tu code snippets", "thong cau cong snippets", "thong cau de snippets", "thong cfd code snippets", "thong cau code slippers"
"gian dan code snippets" » "gian lang code snippets", "gian dan de snippets", "gian dan code slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets"

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"gian dan code snippets\") OR (\"thong cau code snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( gian dan code snippets ) OR ( thong cau code snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("gian dan code snippets") OR ("thong cau code snippets"))) OR ("locating bug code snippets"))*.