Perhaps you should try some spelling variations:
nganh chung » nhanh chuong, nganh cong, nhanh chong
nghiem thuc » nghiem thuoc, nghiep thuc, nhiem thuc
cach thoi » cac thoi, cach thuc, cach noi
chung hoc » trung hoc, dung hoc, hung hoa
danh nhan » doanh nhan, thanh nhan, benh nhan
thoi dai » hoc dai, hoi dap, hoi dan
cong hoc » dong hoc, cong coc, cong ho
cong hoa » dong hoa, dong hoc, hang hoa
hoa danh » hoa doanh, hoa dan, hop danh
tu cach » tu cac
nhan va » nhan tai, nhan dan, nhan tao

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu cach thoi dai, nghiem thuc ((cong hoc) OR (cong hoa)) nganh chung hoc ma hoa danh nhan va~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cach thoi dai, nghiem thuc ((cong hoc) OR (cong hoa)) nganh chung hoc ma hoa danh nhan va".
• Adding a wildcard symbol may retrieve word variants: tu cach thoi dai, nghiem thuc ((cong hoc) OR (cong hoa)) nganh chung hoc ma hoa danh nhan va*.