Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dap min son snippets" » "dap mon son snippets", "dao minh son snippets", "dan minh son snippets", "dap minh son snippets", "dap tinh son snippets", "dap lien son 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 min son 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 min son snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dap min son snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dap min son snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.