Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"toan tu ve snippets" » "toan du ve snippets", "tran tu ve snippets", "toan thuc ve snippets", "toan tu va snippets", "toan tu le snippets", "toan tu te 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: (((("toan tu ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("toan tu ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( toan tu ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("toan tu ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.