Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hien manh » hien hanh, tien manh, hieu manh
thang cua » thong cua, hang cua, than cua
tranh cua » doanh cua, manh cua
cong hinh » cong vinh, cong tinh, hong hinh
hinh toan » tinh toan, thanh toan, trinh toan
toan ban » van 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 manh - hanh ((thang cua) or (tranh cua)) nhung cong hinh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien manh - hanh ((thang cua) OR (tranh cua)) nhung cong hinh toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc hien manh - hanh ((thang cua) or (tranh cua)) nhung cong hinh toan ban*.