Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"lua troi cua snippets" » "lua troi code snippets", "lua tuoi cua snippets", "len troi cua snippets", "lua doi cua snippets", "lua tri cua snippets", "lua tro cua snippets", "lua hoi cua 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: (((("lua troi cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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