Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"tao xac pham snippets" » "tao tac pham snippets", "tao san pham snippets", "tao duc pham snippets", "tao bac pham snippets", "tap xac pham snippets", "tao cac pham snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("tao xac pham snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tao xac pham snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
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