Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"tao hoi viet snippets" » "tao hai viet snippets", "tao oi viet snippets", "tao thai viet snippets", "tao khoi viet snippets", "tao boi viet snippets", "tay hoi viet snippets", "tao hoi viet slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("tao hoi viet 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 hoi viet snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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