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
hoc thieu » toc thieu, hoc hien
trinh van » trinh quan, trinh toan, dinh van
trinh han » trinh quan
trinh va » trinh vat, trinh ve, trinh vi
cong tan » cong tac, cong san, cong thanh

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 trinh va nhung cong tan ((trinh van) OR (trinh han))~.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - hanh trinh va nhung cong tan ((trinh van) or (trinh han))*.