Clinic such as 893 Traditional Medicine Shampoo, DAIBIO Traditional Medicine Shampoo, hair care and skin care Xuân Hồng - BTH, anti-cancer, HIV/AIDS drugs, veterinary medicine, drugs for stomach DAIVIDA, drugs for other anti-diseases as (liver, kidney, heart, blood pressure, lung, match...) Functional Foods and Biology Medicines. "We will lag far behind forever if we follow what other countries are taking, but if we apply chemicals and radiotherapy, it will be harmful to body and cause many side effects such as hair loss, kidney sufferings, etc and especially, it costs a lot of money. Each medical treatment can amount to not less than 20 million VND. Therefore, according to the oriental traditional medical practice, we will take advantage of our forefather experiences" he said. During the years of study and research in Poland during protect doctoral thesis time, he has found the enzyme alkaline fosfataza on intestinal mucosa of experimental animals. From there, he opened to research some other enzymes in metabolic cycle gluxit to render a comprehensive picture of metabolic changes of the animal environment. After three years, his work has been completed. His thesis was rated excellently by the professors in the Scientific Council, agreed for him to transfer immediately to doctor of science thesis. This is a rare case is almost unprecedented for a foreign graduate student then as prescribed by your country, from doctor to make the transition doctor of science cost at least 10–15 years. In June, 1976, he returned to Poland, with Professor Kaviac studied of experimental cancer - malignant cell line nodes in mice. Starting from here, he went deeply into the research field of cancer cell membrane. During four years working hard in the laboratory, his best friends were the electronic microscope and a wealth of laboratory chemicals. He has published dozens of articles for research on cancer cell membranes in English on the scientific subjected journals of Germany, Japan, and Poland. A particularly major mark in this time was that he discovered Calmodulin molecules containing calcium ions deposited on the membrane of cancer cells named L-1210. As announcing this discovery, he immediately received many invitations to work together with the "dream" income level from scientific research institutes of many countries, besides, many scientists around the world sent messages to congratulate him and offered him to share information on research. Refusing to have good conditions in western countries, he came back to Vietnam