Perhaps you should try some spelling variations:
thanh trung » thanh tung
thien tinh » khien tinh, thien minh, tien tinh
nhung cong » dung cong, thong cong, hang cong
hien tinh » khien tinh, bien tinh, dien tinh
trung cap » truong cao, trung tam
cap nhung » cam nhung, vap nhung, dap nhung
cong san » cong tac
toan cao » toan tap
toan ban » van 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 ((hien tinh) or (thien tinh)) - thanh trung cap nhung cong san ((toan cao) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien tinh) OR (thien tinh)) - thanh trung cap nhung cong san ((toan cao) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: hoc ((hien tinh) or (thien tinh)) - thanh trung cap nhung cong san ((toan cao) or (toan ban))*.