Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luong ke cho snippets" » "luong ky cho snippets", "luong kiem cho snippets", "luong che cho snippets", "luong keo cho snippets", "luong ke che snippets", "luong ke 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: (((("luong ke 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: (((("luong ke cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luong ke cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luong ke cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.