Perhaps you should try some spelling variations:
hien nhanh » hien hanh, thien thanh, tien thanh
thuc phung » thuc chung, thuc nhung, thu phuong
phung cong » nhung cong, phong cong, nhung chong
hien xanh » hien hanh, chieu xanh, hien khanh
toan thuc » toan hoc, dan thuc, nhan thuc
cong than » cong thanh, cong thang, cong tan
than phan » thanh phan, toan phan, thanh pham
phan cac » nhan cach, phan dau, phan lap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hien xanh) or (hien nhanh)) - tinh toan thuc phung cong than phan cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (hien nhanh)) - tinh toan thuc phung cong than phan cac.
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) or (hien nhanh)) - tinh toan thuc phung cong than phan cac*.