Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"manh phong cac snippets" » "minh phong cac snippets", "khanh phong cac snippets", "minh phuong cac snippets", "manh phong cach snippets", "manh thong cac snippets", "manh phong cai 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 ("manh phong cac snippets"))) or ("locating bug core snippets"))~.
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