Perhaps you should try some spelling variations:
canh trinh » canh tranh, hanh trinh, canh tinh
nhan thong » nhan trong, nhan khong, nhan tong
hien hanh » dieu hanh
nha thong » nhat thuong, nghe thong, nha truong
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan tap » toan ban

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 hanh - canh trinh ((nha thong) OR (nhan thong)) cong san toan tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien hanh - canh trinh ((nha thong) OR (nhan thong)) cong san toan tap".
• Adding a wildcard symbol may retrieve word variants: hoc hien hanh - canh trinh ((nha thong) OR (nhan thong)) cong san toan tap*.