Perhaps you should try some spelling variations:
hien thanh » thien thanh, hien hanh, tien thanh
nhung cong » dung cong, thong cong, hang cong
truong va » truong dai, truong cao, truong dao
trung va » trang va, trung ha, trung tam
cong tan » cong tac, cong san, cong thanh
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 thanh - thanh ((trung va) or (truong va)) nhung cong tan ((toan cao) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien thanh - thanh ((trung va) OR (truong va)) nhung cong tan ((toan cao) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: hoc hien thanh - thanh ((trung va) or (truong va)) nhung cong tan ((toan cao) or (toan ban))*.