Perhaps you should try some spelling variations:
thien hach » thien thanh, hien hanh
truong cua » truong ca, truong quan, truong cao
hoc thien » hoc hien, hoc thieu, hoc thiet
trung cap » truong cao, trung tam
cong tan » cong tac, cong san, cong thanh
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 thien hach - thanh ((trung cap) or (truong cua)) trong cong tan ((toan cau) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thien hach - thanh ((trung cap) OR (truong cua)) trong cong tan ((toan cau) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: hoc thien hach - thanh ((trung cap) or (truong cua)) trong cong tan ((toan cau) or (toan tap))*.