Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"bat hang cau snippets" » "bat hang code snippets", "ban hang cau snippets", "dat hang cau snippets", "mat hang cau snippets", "bat hang dau snippets", "bat hang ca snippets", "bat nhung cau 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: (((("bat hang cau snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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