Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cau hoc cham snippets" » "cau hoc code snippets", "cau toc cham snippets", "cau hoc chat snippets", "cau hoc chan snippets", "cau hoi cham snippets", "cau hoa cham snippets", "cao hoc cham 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: (((("cau hoc cham snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cau hoc cham snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
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