Perhaps you should try some spelling variations:
phong tuong » phong trong, thong thuong, thong thong
thanh trung » thanh tung
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
trung tuan » trung thanh, trung tam, tran tuan
tuan phong » thuan phong, tran phong, luan phong
tuong dan » huong dan, tung dan, xuong dan
phan dau » phan tu, hang dau
than cap » khan cap, thanh lap, thanh cac

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

• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - thanh trung tuan phong tuong dan ((phan dau) OR (than cap))~.
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - thanh trung tuan phong tuong dan ((phan dau) or (than cap))*.