Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
canh trinh » canh tranh, canh tinh, anh trinh
hanh trinh » canh tranh, hanh chinh
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu, hoc hien
cong van » cong vang, cong san, song van
van phan » van phong, van thanh, luan phan
phan cau » phan dau, phan cac, phan tu

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