Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hanh trinh » canh tranh, hanh chinh
thong cong » trong cong, tong cong, thong thong
hoc thieu » toc thieu, hoc hien
trinh sat » trinh san, trinh sau, trinh sai
sat thong » suat thong, sau thong, mat thong
cong san » cong tac
toan cau » toan ban, toan tai
toan tap » toan ban
toan cao » toan ban

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 sat thong cong san ((((toan cau) or (toan tap))) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - hanh trinh sat thong cong san ((((toan cau) OR (toan tap))) OR (toan cao)).
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - hanh trinh sat thong cong san ((((toan cau) or (toan tap))) or (toan cao))*.