Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"thi toan dam snippets" » "thi tran dam snippets", "thi hoan dam snippets", "thi loan dam snippets", "thi toan ban snippets", "thi toan tap snippets", "thi toan cao snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("thi toan dam snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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