Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thay cung do snippets" » "thay tuong do snippets", "tho cung do snippets", "thai vung do snippets", "thay chung do snippets", "thay cuong do snippets", "thay dung do 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: (((("thay cung do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thay cung do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thay cung do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thay cung do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.