Perhaps you should try some spelling variations:
trung tuan » trung thanh, trung tam, tran tuan
thong cong » trong cong, tong cong, thong thong
hoc chinh » hoan chinh, hoc sinh, hoc kinh
trung cua » truong cua, dung cua, thong cua
trung cap » truong cao, trung tam
cong doan » cong dan, cong hoan, dong doanh
doan van » doan va, hoang van, luan van

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chinh sach - hanh ((((trung cua) OR (trung cap))) or (trung tuan)) thong cong doan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chinh sach - hanh ((((trung cua) OR (trung cap))) OR (trung tuan)) thong cong doan van ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chinh sach - hanh ((((trung cua) OR (trung cap))) or (trung tuan)) thong cong doan van ban".
• Adding a wildcard symbol may retrieve word variants: hoc chinh sach - hanh ((((trung cua) OR (trung cap))) or (trung tuan)) thong cong doan van ban*.