Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"bai hau den snippets" » "bai hat den snippets", "dai hau den snippets", "hai hau den snippets", "bai cau den snippets", "bai thau dien snippets", "bai thai 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: (((("bai hau 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: (((("bai hau den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( bai hau den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("bai hau den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.