Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"co phanh cho snippets" » "co danh cho snippets", "co chinh cho snippets", "co phan co snippets", "co phan cho snippets", "co thanh cho snippets", "co hanh 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: (((("co phanh 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: (((("co phanh cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( co phanh cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("co phanh cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.