Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"python using java slippers" » "python using data slippers", "python using java slippery", "python using java grippers"
"lua co sach snippets" » "lua bo sach snippets", "lua cuon sach snippets", "lua hoc sach snippets", "cua co sach snippets", "qua co sach snippets", "lua chon sach snippets"

Try widening your search to All Fields.

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