Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, hien hanh
thieu xanh » chieu xanh, hieu manh, thien anh
hanh tranh » canh tranh, hanh trinh, hanh trang
nhung cong » dung cong, thong cong, hang cong
nhan nhanh » nhanh thanh, nhat hanh
tranh cua » doanh cua, manh cua
cua nhung » va nhung
san nhanh » san thanh, ban hanh, ban 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 ((thieu xanh) or (thien thanh)) - hanh tranh cua nhung cong ((san nhanh) OR (nhan nhanh)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (thien thanh)) - hanh tranh cua nhung cong ((san nhanh) OR (nhan nhanh)) cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu xanh) or (thien thanh)) - hanh tranh cua nhung cong ((san nhanh) OR (nhan nhanh)) cau*".