Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dap song cua snippets" » "tap song cua snippets", "phap song cua snippets", "doi song cua snippets", "dap cong cua snippets", "dap dong cua snippets", "dap huong cua snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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

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