Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"vuong hoi trac snippets" » "duong hoi trac snippets", "truong hoi trac snippets", "luong hoai trac snippets", "vuong hoi trach snippets", "vuong hoi tran snippets", "vuong hoi tac snippets"
"locating bug core snippets" » "locating bug code snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("using java code snippets") or ("vuong hoi trac snippets"))) or ("locating bug core snippets"))~.
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