Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phi day cho snippets" » "phi xay cho snippets", "phi dau cho snippets", "khi day cho snippets", "phi dac cho snippets", "phi danh cho 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: (((("phi day 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: (((("phi day cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phi day cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phi day cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.