Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"lua hoc dinh snippets" » "lua hoc sinh snippets", "lua hoc kinh snippets", "lua hoc danh snippets", "luan hoc dinh snippets", "luc hoc dinh snippets", "cua hoc dinh snippets"

Try widening your search to All Fields.

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