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