Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thoi la den snippets" » "toi la den snippets", "thoi va den snippets", "thi la den snippets", "thoi la don snippets", "thoi ra den 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: (((("thoi la 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: (((("thoi la den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thoi la den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thoi la den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.