Perhaps you should try some spelling variations:
"dap van cong snippets" » "dap van code snippets", "dap van dong snippets", "dap van phong snippets", "dap phan cong snippets", "dao van cong snippets", "tap van cong snippets", "dam van cong 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.

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