Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"che ham cua snippets" » "che pham cua snippets", "che hoat cua snippets", "che phap cua snippets", "che hai cua snippets", "che nam cua 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: (((("che ham cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("che ham cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( che ham cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("che ham cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.