Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"hung van tan snippets" » "phung van tan snippets", "nhung van tan snippets", "dung van tan snippets", "hung van tuan snippets", "hung van ban snippets", "hung van tai 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 ("hung van tan snippets"))) or ("locating bug core snippets"))~.
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