Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu tinh » trieu tinh, lieu tinh, chau tinh
cao thuong » cao truong, ca thuong, cho thuong
trung cao » truong cao, trung cap, trung co
ho chieu » theo chieu, hoc thieu, doi chieu
con ban » con bang, co ban, can ban
co dan » co ban, ca dan, cao dang

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu tinh - thanh trung cao thuong ((co dan) or (con ban)) phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu tinh - thanh trung cao thuong ((co dan) OR (con ban)) phan tu.
• Adding a wildcard symbol may retrieve word variants: ho chieu tinh - thanh trung cao thuong ((co dan) or (con ban)) phan tu*.