Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ban nhan mon snippets" » "ban than mon snippets", "van nhan mon snippets", "ban thanh mon snippets", "ban nhap mon snippets", "ban nhan mo snippets", "ban nhan con 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 nhan mon 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 nhan mon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ban nhan mon snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ban nhan mon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.