Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, hien hanh
thien danh » thien anh, thien dang, thien chanh
thanh tung » thanh cong
truong van » truong va, truong dai, truong cao
tung toan » dung toan, truong toan, quang toan
trong van » trong cac
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 danh) or (thien thanh)) - thanh tung toan thong ((truong van) or (trong van)) phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thien danh) OR (thien thanh)) - thanh tung toan thong ((truong van) OR (trong van)) phan cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((thien danh) or (thien thanh)) - thanh tung toan thong ((truong van) or (trong van)) phan cau*.