Perhaps you should try some spelling variations:
tien thanh » tien thinh, tran thanh, den thanh
tang luan » dung luan
dung cong » dung trong
tang cua » mang cua, hang cua, thong cua
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: hoc ((tien thanh) or (tieng anh)) - anh ((tang cua) OR (tang luan)) dung cong tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((tien thanh) OR (tieng anh)) - anh ((tang cua) OR (tang luan)) dung cong tac toan cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((tien thanh) or (tieng anh)) - anh ((tang cua) OR (tang luan)) dung cong tac toan cau*".