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
hanh tang » hanh trang, hanh mang, hanh tung
cua nhung » va nhung
cong tinh » cong trinh, cong vinh, long tinh
anh tang » anh bang, anh dang, anh nang
toan tap » toan ban

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 tang) OR (anh tang))) OR (hanh trinh)) cua nhung cong tinh toan tap~.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - ((((hanh tang) or (anh tang))) or (hanh trinh)) cua nhung cong tinh toan tap*.