Perhaps you should try some spelling variations:
nhung chong » nhung cong, nhung phong, nhung phuong
thieu xanh » chieu xanh, thien anh, thien danh
hieu manh » chieu xanh, hieu nganh, dieu hanh
chong van » thong van, hong van, phong van
kinh cua » sinh cua, dinh cua, hinh cua
tinh cua » trinh cua, sinh cua, tinh chat
van toan » van tuan, van tan, van thanh
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thieu xanh) or (hieu manh)) - hinh ((kinh cua) OR (tinh cua)) nhung chong van toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (hieu manh)) - hinh ((kinh cua) OR (tinh cua)) nhung chong van toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu xanh) or (hieu manh)) - hinh ((kinh cua) OR (tinh cua)) nhung chong van toan cao".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) or (hieu manh)) - hinh ((kinh cua) OR (tinh cua)) nhung chong van toan cao*.