Perhaps you should try some spelling variations:
thanh tung » thanh cong
tuan thong » toan thong, tran thong, tuan phong
thong cong » trong cong, tong cong, thong thong
hoc chinh » hoan chinh, hoc sinh, hoc kinh
tung tuan » trung tuan, hung tuan, quang tuan
sang toan » sang than, quang toan, sang tao
dang toan » dang tran, dan toan, dung toan

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 - thanh tung tuan thong cong ((sang toan) or (dang toan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chinh sach - thanh tung tuan thong cong ((sang toan) OR (dang toan)) cau*.