Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"can thi cao snippets" » "cau thi cao snippets", "dan thi cao snippets", "van thi cao snippets", "can thai cao snippets", "can thi hao snippets", "can thi bao 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: (((("can thi cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("can thi cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( can thi cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("can thi cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.