Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thu diet con snippets" » "thu dieu con snippets", "thu dien con snippets", "thuc viet con snippets", "thu giet con snippets", "thu dien cong 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: (((("thu diet con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thu diet con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thu diet con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thu diet con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.