For beginners, education departments sometimes provide free PDF dictionaries.
: A directory that links to multiple multilingual dictionaries, including Chinese-Vietnamese-English options like the Lingea Chinese-Vietnamese Dictionary specialized vocabulary english vietnamese chinese trilingual dictionary pdf link
You can view a sample and details on Nhan Tri Viet or find full digital versions on academic sharing sites like Studocu Chinese-English Bilingual Visual Dictionary (DK) english vietnamese chinese trilingual dictionary pdf link
: While this specific manual replaces Chinese with Korean, it is a high-quality PDF resource from HCIN Learn english vietnamese chinese trilingual dictionary pdf link