Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cuc vien cac snippets" » "chuc vien cac snippets", "cua vien cac snippets", "cuc dien cac snippets", "cuc vien bach snippets", "cuc vien dai snippets", "cuc vien da 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: (((("cuc vien cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cuc vien cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cuc vien cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cuc vien cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.