Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hoang manh » hoang minh, hoang anh, hoang xanh
cua nhung » va nhung
manh cua » doanh cua, ban cua
cong tan » cong tac, cong san, cong thanh
toan cao » toan tap
toan ban » van ban
thi van » thi hanh, thi nang
thi lan » thi hanh, thi nang, thi lien

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

• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((thi van) OR (thi lan)) - hoang manh cua nhung cong tan ((toan cao) OR (toan ban))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((thi van) or (thi lan)) - hoang manh cua nhung cong tan ((toan cao) OR (toan ban))~".
• Adding a wildcard symbol may retrieve word variants: theo ((thi van) or (thi lan)) - hoang manh cua nhung cong tan ((toan cao) OR (toan ban))*.