Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
cong thanh » dong thanh, cong trinh, cong tan
hieu manh » chieu xanh, hieu nganh, dieu hanh
tranh cua » doanh cua, manh cua
nhanh cau » nhanh cay, thanh chau, hang cau
hoc hieu » hoc thieu, hoc hien, doc hieu
nhanh ha » thanh hoa, thanh hai, khanh hoa
luat » luan, xuat

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hieu manh - hanh ((trinh luat) or (tranh cua)) nhung cong thanh ((nhanh cau) OR (nhanh ha))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu manh - hanh ((trinh luat) OR (tranh cua)) nhung cong thanh ((nhanh cau) OR (nhanh ha)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hieu manh - hanh ((trinh luat) or (tranh cua)) nhung cong thanh ((nhanh cau) OR (nhanh ha))".
• Adding a wildcard symbol may retrieve word variants: hoc hieu manh - hanh ((trinh luat) or (tranh cua)) nhung cong thanh ((nhanh cau) OR (nhanh ha))*.