Perhaps you should try some spelling variations:
nhanh tinh » nhanh thanh, hanh trinh, nhan sinh
thieu xanh » chieu xanh, thien anh, thien danh
thong cong » trong cong, tong cong, thong thong
cong thanh » dong thanh, cong trinh, cong tan
hieu manh » chieu xanh, hieu nganh, dieu hanh
hanh tinh » hanh trinh, thanh tinh, canh tinh
cua thong » cua thuong, cua khong, cua tong
thanh van » thanh san, thanh toan, thanh phan

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

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