Perhaps you should try some spelling variations:
trung tuan » trung thanh, trung tam, tran tuan
hien xanh » hien hanh, hien nhanh, chieu xanh
trung cua » truong cua, trung cap, dung cua
hang cong » dang cong, hang nong, bang cong
cong dan » cong san, cong tan, huong dan
toan ban » van ban
toan cao » 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 hien xanh - hanh ((trung cua) or (trung tuan)) hang cong dan ((toan ban) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - hanh ((trung cua) OR (trung tuan)) hang cong dan ((toan ban) OR (toan cao)).
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - hanh ((trung cua) or (trung tuan)) hang cong dan ((toan ban) or (toan cao))*.