Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using data snippets" » "python using java snippets", "python using sat snippets", "python missing data snippets"
"tap van tien snippets" » "tap toan tien snippets", "tap van hieu snippets", "tap van tuan snippets", "tap va tien snippets", "tap vat tien snippets", "tap quan tien snippets"

Try widening your search to All Fields.

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