Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"choi cau den snippets" » "choi au den snippets", "choi chu den snippets", "hoi cau den snippets", "choi cap den snippets", "choi cau de snippets", "choi hau 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: (((("choi cau 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: (((("choi cau den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( choi cau den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("choi cau den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.