Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"doc anh thuc snippets" » "doc am thuc snippets", "doc dan thuc snippets", "doc anh tu snippets", "doc hanh thuc snippets", "duoc anh thuc snippets", "duc anh thuc snippets"

Try widening your search to All Fields.

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