Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"bac van thuc snippets" » "bac va thuc snippets", "bac dan thuc snippets", "bac van thu snippets", "bach van thuc snippets", "cac van thuc snippets", "ban van thuc snippets"

Try widening your search to All Fields.

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