Perhaps you should try some spelling variations:
thien hieu » thien nhien, thien chien, thien hue
cua thuong » cua truong, cua phuong, ca thuong
hieu lang » chieu sang, hieu quang, nhieu tang
hanh mang » nhanh mang, hanh trang, nhanh lang
cua thong » cua khong, cua tong, suat thong
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cau » 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: thien hieu lang - hanh mang ((cua thong) OR (cua thuong)) cong tac toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thien hieu lang - hanh mang ((cua thong) OR (cua thuong)) cong tac toan cau".
• Adding a wildcard symbol may retrieve word variants: thien hieu lang - hanh mang ((cua thong) OR (cua thuong)) cong tac toan cau*.