Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhoi dan den snippets" » "hoi dan den snippets", "choi dan den snippets", "nhom dan den snippets", "nhoi ban den snippets", "nhoi van den snippets", "nhoi 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: (((("nhoi 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: (((("nhoi dan den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhoi dan den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhoi dan den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.