Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dien tao cac snippets" » "dien mao cac snippets", "dien giao cac snippets", "dien toan cac snippets", "dien tao bac snippets", "dien tao cao snippets", "dien tai cac 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: (((("python using java snippets") or ("dien tao cac snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("dien tao cac snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( dien tao cac snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("dien tao cac snippets"))) or ("locating bug code snippets"))*.