Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"hang cac trinh snippets" » "hang cac tinh snippets", "hang lap trinh snippets", "hang cac thanh snippets", "hang ca trinh snippets", "hang cau trinh snippets", "bang cac 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 ("hang cac trinh snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java code snippets") OR ("hang cac trinh snippets"))) OR ("locating bug core snippets")).
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