Perhaps you should try some spelling variations:
thanh thang » nhanh thang, thanh thanh, thanh hang
hoc thuyet » hoc chuyen
thong cong » trong cong, tong cong, thong thong
thang cua » thong cua, hang cua, than cua
cua thong » cua thuong, cua khong, cua tong
cong tinh » cong trinh, cong vinh, long tinh
ho chiet » ho chieu, ho thiet, hoc thiet
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: ((ho chiet) or (hoc thuyet)) tach - thanh thang cua thong cong tinh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chiet) OR (hoc thuyet)) tach - thanh thang cua thong cong tinh toan cau.
• Adding a wildcard symbol may retrieve word variants: ((ho chiet) or (hoc thuyet)) tach - thanh thang cua thong cong tinh toan cau*.