Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"data thu duc snippets" » "dat thu duc snippets", "dai thu duc snippets", "dan thu duc snippets", "data thu tuc snippets", "data tho duc snippets", "data thu muc snippets"

Try widening your search to All Fields.

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