Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hanh trinh » canh tranh
nhung cong » dung cong, thong cong, hang cong
cong luong » cong thuong, nang luong, cong dong
hoc thieu » toc thieu, hoc hien
luong tai » dung tai, luong va
tai cau » tai cac, tai cao

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 trinh) or (hanh chinh)) va nhung cong luong tai cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - ((hanh trinh) OR (hanh chinh)) va nhung cong luong tai cau.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - ((hanh trinh) or (hanh chinh)) va nhung cong luong tai cau*.