Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"bach cau trinh snippets" » "bach lap trinh snippets", "bach chau tinh snippets", "bach cau vinh snippets", "bac cau trinh snippets", "bach mai trinh snippets", "sach cap trinh 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 ("bach cau trinh snippets"))) or ("locating bug core snippets"))~.
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