Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hanh trinh » canh tranh, hanh chinh
nhung cong » dung cong, thong cong, hang cong
trinh quan » tinh quang, trinh luat, trinh han
hoc thieu » toc thieu, hoc hien
trinh van » trinh han, trinh toan, dinh van
trinh va » trinh vat, trinh ve, trinh vi
cong san » cong tac

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - hanh trinh va nhung cong san ((trinh van) OR (trinh quan))~".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - hanh trinh va nhung cong san ((trinh van) OR (trinh quan))*.