Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"dam hoi trac snippets" » "dam choi trac snippets", "dai hoi trac snippets", "nam hoi trac snippets", "dam hoi trach snippets", "dam hoi tran snippets", "dam hoi tac snippets"

Try widening your search to All Fields.

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