Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, hien hanh
thieu xanh » chieu xanh, hieu manh, thien anh
hanh tranh » canh tranh, hanh trinh, hanh trang
nhung cong » dung cong, thong cong, hang cong
tranh cua » doanh cua, manh cua
cua nhung » va nhung
cong tan » cong tac, cong san, cong thanh
toan cau » toan ban, toan tap, toan tai
toan cao » toan ban, toan tap

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) or (thien thanh)) - hanh tranh cua nhung cong tan ((toan cau) OR (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (thien thanh)) - hanh tranh cua nhung cong tan ((toan cau) OR (toan cao)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu xanh) or (thien thanh)) - hanh tranh cua nhung cong tan ((toan cau) OR (toan cao))".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) or (thien thanh)) - hanh tranh cua nhung cong tan ((toan cau) OR (toan cao))*.