Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dat thu cham snippets" » "dat thi cham snippets", "dat tu cham snippets", "dat thu pham snippets", "dat phu cham snippets", "sat thuc cham snippets", "dat tieu cham 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: (((("dat thu cham snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dat thu cham snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dat thu cham snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dat thu cham snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.