Perhaps you should try some spelling variations:
nhanh tinh » nhanh thanh, hanh trinh, nhan sinh
doi trinh » doi tinh, dong trinh, doi trong
doc trinh » doc tinh, hoc trinh, dong trinh
dung cong » dung trong
tinh cua » trinh cua, sinh cua, tinh chat
cua dung » cua dang, cua dong, qua dung
cong ban » cong bang, cong san, cong tan
than cau » toan cau, than cap, thanh chau
phan cau » phan dau, phan cac, phan tu

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: ((doi trinh) OR (doc trinh)) tin - nhanh tinh cua dung cong ban ((than cau) OR (phan cau))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi trinh) OR (doc trinh)) tin - nhanh tinh cua dung cong ban ((than cau) or (phan cau))~".
• Adding a wildcard symbol may retrieve word variants: ((doi trinh) OR (doc trinh)) tin - nhanh tinh cua dung cong ban ((than cau) or (phan cau))*.