Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tim kiem cho snippets" » "tiet kiem cho snippets", "tim hieu cho snippets", "thi kiem cho snippets", "tim hiem cho snippets", "tim kiem chong snippets", "tim hiem chon 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: (((("tim kiem 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: (((("tim kiem cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tim kiem cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tim kiem cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.