Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, hien hanh
truong cao » truong dai
hoc thien » hoc hien, hoc thieu, hoc thiet
trung cap » trung tam
dung cong » dung trong
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 thien thanh - manh ((trung cap) OR (truong cao)) dung cong tac toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thien thanh - manh ((trung cap) OR (truong cao)) dung cong tac toan cau".
• Adding a wildcard symbol may retrieve word variants: hoc thien thanh - manh ((trung cap) OR (truong cao)) dung cong tac toan cau*.