Perhaps you should try some spelling variations:
"cac tu chon snippets" » "cac tu code snippets", "cac tu choi snippets", "cac tu hon snippets", "cac lua chon snippets", "cac thu chon snippets", "cach tu chon snippets", "cac du chon snippets"
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"

Try widening your search to All Fields.

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