Perhaps you should try some spelling variations:
thien chanh » thien chinh, hien hanh, tien thanh
thien thanh » tien thanh, hien hanh, chien tranh
thanh trung » thanh tung
tong thong » thong thong, dong thong, cong thong
trung cua » truong cua, trung tuan, trung cap
thong dan » thong van, tuong dan, thong den
cua tong » cua cong, cua dong, cua nong
dan phan » doan phan, dan chan, van phan
phan cau » phan dau, phan cac, phan tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thien chanh) or (((thien thanh) OR (thi thanh)))) - thanh trung cua tong thong dan phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thien chanh) OR (((thien thanh) OR (thi thanh)))) - thanh trung cua tong thong dan phan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thien chanh) or (((thien thanh) OR (thi thanh)))) - thanh trung cua tong thong dan phan cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((thien chanh) or (((thien thanh) OR (thi thanh)))) - thanh trung cua tong thong dan phan cau*.