Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"locating bug core snippets" » "locating bug code snippets"
"dong lu code snippets" » "dong luc code snippets", "dong tu code snippets", "dong su code snippets", "dong bug code snippets", "dong lbm code snippets"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("python using java snippets") or ("dong lu code snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("dong lu code snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( dong lu code snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("dong lu code snippets"))) or ("locating bug core snippets"))*.