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