Perhaps you should try some spelling variations:
chat thuong » chan thuong, chap thuong, chat huong
nhanh tinh » nhanh thanh, hanh trinh, nhan sinh
thuong con » thuong dong, truong cong, thong cong
hieu manh » chieu xanh, hieu nganh, dieu hanh
thien anh » thien danh, tien anh, thien thanh
doan cau » toan cau, doan cap, doanh chau
doan dau » doan dieu, phan dau, doan va
con tap » cong tac, toan tap, cong tan

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: hoc ((hieu manh) OR (thien anh)) - nhanh tinh chat thuong con tap ((doan cau) OR (doan dau))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hieu manh) or (thien anh)) - nhanh tinh chat thuong con tap ((doan cau) OR (doan dau))~".
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu manh) or (thien anh)) - nhanh tinh chat thuong con tap ((doan cau) OR (doan dau))*.