Perhaps you should try some spelling variations:
hien nhanh » hien hanh, thien thanh, tien thanh
nhung cong » dung cong, thong cong, hang cong
hien xanh » hien hanh, chieu xanh, hien khanh
trang cap » trung cap, tranh chap, trang cham
trong cap » trung cap, trong cac, trong ca
cong manh » cong danh, duong manh, cong thanh
manh toan » thanh toan, anh tuan, tinh toan
toan tap » toan 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 xanh) OR (hien nhanh)) - hanh ((trang cap) or (trong cap)) nhung cong manh toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (hien nhanh)) - hanh ((trang cap) OR (trong cap)) nhung cong manh toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien xanh) OR (hien nhanh)) - hanh ((trang cap) or (trong cap)) nhung cong manh toan tap".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) OR (hien nhanh)) - hanh ((trang cap) or (trong cap)) nhung cong manh toan tap*.