Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cuu cuong do snippets" » "cuu cong do snippets", "cuu chong do snippets", "cuu tuong do snippets", "cuu cuong dao snippets", "cuu cuong vo snippets", "cuu luong 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: (((("cuu cuong 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: (((("cuu cuong do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cuu cuong do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cuu cuong do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.