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