Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dap gia cua snippets" » "dau gia cua snippets", "dat gia cua snippets", "dan gia cua snippets", "dap gian cua snippets", "dap giau cua snippets", "dap gia cuc 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 gia 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 gia cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dap gia cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dap gia cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.