Perhaps you should try some spelling variations:
"bang cac ham slippers" » "bang cac ham slices", "nang cao ham slippers", "hang ca ham slippers", "dung cac ham slippers", "bang cac cam slippers", "bang cac hat slippers", "bang cac nhan slippers"
"python using java snippets" » "python using data snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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