Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"toan hoc cuc snippets" » "toan hoc code snippets", "toan khoa cuc snippets", "van hoc cuc snippets", "hoa hoc cuc snippets", "toan hoc chuc snippets", "toan hoc cua snippets", "toan hoc cac 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: (((("toan hoc cuc snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("toan hoc cuc snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
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