Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dap tinh cho snippets" » "dac tinh cho snippets", "tap tinh cho snippets", "dao tinh cho snippets", "dap trinh cho snippets", "dap tinh cao snippets", "dap tinh co 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 tinh cho 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 tinh cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dap tinh cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dap tinh cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.