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