Perhaps you should try some spelling variations:
hien nhanh » hien hanh, thien thanh, tien thanh
hanh trang » thanh trung, hanh trinh, minh trang
quan nhung » qua nhung, cua nhung, luan chung
nhung cong » dung cong, thong cong, hang cong
cong manh » cong danh, duong manh, cong thanh
toan cau » toan cao, toan tap, toan tai
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 hien nhanh - ((hanh trang) or (canh tranh)) quan nhung cong manh ((toan cau) OR (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien nhanh - ((hanh trang) OR (canh tranh)) quan nhung cong manh ((toan cau) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien nhanh - ((hanh trang) or (canh tranh)) quan nhung cong manh ((toan cau) OR (toan ban))".
• Adding a wildcard symbol may retrieve word variants: hoc hien nhanh - ((hanh trang) or (canh tranh)) quan nhung cong manh ((toan cau) OR (toan ban))*.