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