Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
cua thuong » cua truong, cua phuong, ca thuong
hoc chieu » hoc thieu, ho chieu, hoc hien
hanh manh » hanh mang, lanh manh, hoang manh
cua thong » cua khong, cua tong, suat thong
cong tac » cong ty
toan cau » toan cao, toan ban, toan tai
toan tap » 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 chieu xanh - hanh manh ((cua thong) or (cua thuong)) cong tac ((toan cau) OR (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu xanh - hanh manh ((cua thong) OR (cua thuong)) cong tac ((toan cau) OR (toan tap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu xanh - hanh manh ((cua thong) or (cua thuong)) cong tac ((toan cau) OR (toan tap))".
• Adding a wildcard symbol may retrieve word variants: hoc chieu xanh - hanh manh ((cua thong) or (cua thuong)) cong tac ((toan cau) OR (toan tap))*.