Perhaps you should try some spelling variations:
"lochating bug code snippets" » "locating bug code snippets", "lochating bug code slippers", "lochating bug core snippets"
"python using java snippets" » "python using data snippets", "python using java slippers"
"o cao danh snippets" » "o cao dang snippets", "o cao anh snippets", "o cau danh snippets", "o lao danh snippets", "o cac danh snippets", "o cao danh slippers"

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("o cao danh snippets") OR ("python using java snippets"))) OR ("lochating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( o cao danh snippets ) or ( python using java snippets ))) or ( lochating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("o cao danh snippets") or ("python using java snippets"))) or ("lochating bug code snippets"))*.