Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lai gian cua snippets" » "lai giai cua snippets", "bai giang cua snippets", "loai giao cua snippets", "lai gian xu snippets", "lai ban cua 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: (((("lai gian cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lai gian cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lai gian cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lai gian cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.