Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thuc cua me snippets" » "hoc cua me snippets", "thuc va me snippets", "thuc cua mes snippets", "thuc cha me snippets", "thuc ca me 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: (((("thuc cua me snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thuc cua me snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thuc cua me snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thuc cua me snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.