Perhaps you should try some spelling variations:
trung tuan » trung thanh, trung tam, tran tuan
chuc danh » chuc nganh, thuc hanh, chuc nang
chua xang » chua nang, chuc nang, chu bang
trung cua » truong cua, trung cap, dung cua
hang nong » thang long, han tong
nong tinh » cong tinh, long tinh, dong tinh
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: theo ((chuc danh) or (chua xang)) - hanh ((trung cua) OR (trung tuan)) hang nong tinh toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chuc danh) OR (chua xang)) - hanh ((trung cua) OR (trung tuan)) hang nong tinh toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chuc danh) or (chua xang)) - hanh ((trung cua) OR (trung tuan)) hang nong tinh toan tap".
• Adding a wildcard symbol may retrieve word variants: theo ((chuc danh) or (chua xang)) - hanh ((trung cua) OR (trung tuan)) hang nong tinh toan tap*.