Perhaps you should try some spelling variations:
tranh cua » doanh cua, manh cua
nong cong » cong cong, tong cong, nang cong
hoc dieu » hoc thieu, hoc hien
cua nong » cua cong, cuu nong, cua dong
cong tap » cuong tap, cong tac, cong tan
doan cau » toan cau, doan dau, doan cap
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 dieu hanh - canh tranh cua nong cong tap ((doan cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc dieu hanh - canh tranh cua nong cong tap ((doan cau) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: hoc dieu hanh - canh tranh cua nong cong tap ((doan cau) or (toan ban))*.