Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
cong thanh » dong thanh, cong trinh, truong thanh
hoc thieu » toc thieu, hoc hien
hanh sinh » hanh tinh, hanh dinh, hinh sinh
cua trung » cua truong, xuan trung, cua nhung
sinh cua » manh cua, dinh cuu, sinh va
cong tan » cong tac, cong san, cong ty

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 - hanh sinh cua trung ((cong thanh) OR (cong tan)) van ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - hanh sinh cua trung ((cong thanh) OR (cong tan)) van ban*".