Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"khoa can tao snippets" » "khoa cam tao snippets", "khoa cap tao snippets", "khoi can tao snippets", "khoa cau tao snippets", "khoa can tho snippets", "khoa cai tao snippets", "khoa can tao 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: (((("khoa can tao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khoa can tao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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