Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
tran thanh » ban thanh, van thanh, quan thanh
hien xanh » hien hanh, hien nhanh, chieu xanh
trang cua » tang cua, trung cua, thang cua
tranh cua » doanh cua, manh cua
cong tan » cong tac, cong san, cong thanh

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 - hanh ((trang cua) or (tranh cua)) nhung cong tan tran thanh~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - hanh ((trang cua) OR (tranh cua)) nhung cong tan tran thanh.
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - hanh ((trang cua) or (tranh cua)) nhung cong tan tran thanh*.