Perhaps you should try some spelling variations:
thanh trung » thanh tung
theo chieu » theo tieu, ho chieu, theo chu
doi chieu » doc hieu, doi chi, ho chieu
trung cua » truong cua, trung tuan, trung cap
phan tong » phan trong, phan cong, han tong
cua phan » cua nhan, cua phap, cua han
tong dan » tuong dan, thong dan, trong dan
dan van » dang van, doan van, dao van

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

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