Perhaps you should try some spelling variations:
"dao do yong snippets" » "dao do code snippets", "dao do hong snippets", "dao do cong snippets", "dao do dong snippets", "dao o yong snippets", "dao ho yong snippets", "dao dong yong snippets"
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"

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: (((("python using java snippets") OR ("dao do yong snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( dao do yong snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("dao do yong snippets"))) or ("locating bug core snippets"))*.