Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hieu manh » chieu xanh, hieu nganh, dieu hanh
thien anh » thien danh, tien anh, thien thanh
tranh cua » doanh cua, manh cua
cua nhung » va nhung
cong san » cong tac
toan tai » toan tap, doanh tai, 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: toc ((hieu manh) or (thien anh)) - canh tranh cua nhung cong san ((toan tai) or (van ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc ((hieu manh) OR (thien anh)) - canh tranh cua nhung cong san ((toan tai) OR (van ban)).
• Adding a wildcard symbol may retrieve word variants: toc ((hieu manh) or (thien anh)) - canh tranh cua nhung cong san ((toan tai) or (van ban))*.