Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tao danh dep snippets" » "cao danh dep snippets", "tac danh dep snippets", "tao anh dep snippets", "tao canh dep snippets", "tao danh dien snippets", "tao hanh de 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: (((("tao danh dep snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tao danh dep snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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• Adding a wildcard symbol may retrieve word variants: (((("tao danh dep snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.