Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"van canh cay snippets" » "van canh code snippets", "van anh cay snippets", "van hanh cay snippets", "van manh cay snippets", "van canh tay snippets", "van xanh cay snippets", "van nhanh cay 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: (((("van canh cay snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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