Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dap do cua snippets" » "cap do cua snippets", "dao do cua snippets", "dap so cua snippets", "dap doi cua snippets", "dap co cua snippets", "dap de 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 do 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 do cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dap do cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dap do cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.