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