Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"cac thoi lan snippets" » "cac toi lan snippets", "cac hop lan snippets", "cac tro lan snippets", "cac thi lan snippets", "cac thoi gian snippets", "cac thon lang snippets"

Try widening your search to All Fields.

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