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