Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"cham nen tao snippets" » "cham den tao snippets", "cham nhin tao snippets", "cham ninh tao snippets", "cham nen tai snippets", "cham nhan tao snippets", "cham nen tang snippets", "cham nen 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: (((("cham nen 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: (((("cham nen tao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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