Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"menh cua du snippets" » "manh cua du snippets", "benh chua du snippets", "mang cua du snippets", "menh cua duc snippets", "menh cua ndu snippets", "menh cua su 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: (((("menh cua du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("menh cua du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( menh cua du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("menh cua du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.