Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"anh nam de snippets" » "hanh nam de snippets", "danh nam de snippets", "anh cam de snippets", "anh nam da snippets", "anh nam do snippets", "anh nam he 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: (((("anh nam de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("anh nam de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( anh nam de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("anh nam de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.