Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
dang cong » dung cong
tinh cua » trinh cua, sinh cua, tinh chat
ban cau » bang cau, van cau, ban dau
ban can » ban dan, ban hang, ban hanh

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: hoc thieu xanh - hanh tinh cua ((nhung cong) OR (dang cong)) van ((ban cau) OR (ban can))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - hanh tinh cua ((nhung cong) or (dang cong)) van ((ban cau) OR (ban can))~".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - hanh tinh cua ((nhung cong) or (dang cong)) van ((ban cau) OR (ban can))*.