Perhaps you should try some spelling variations:
trong vat » trong van, trong va, trong dat
trung van » truong van, trong van, trung va
dung cong » dung trong
cua tinh » cua sinh, va tinh, ha tinh
cong dan » cong san, cong tan, huong dan
dan thai » dang thai, dan thi, dan than
thai cao » tai cao, thoai cac, thuat cao
ho cua » hoc cua, hoi cua, hoa cua

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: ho cua tinh - thanh ((trong vat) OR (trung van)) dung cong dan thai cao~.
• Adding a wildcard symbol may retrieve word variants: ho cua tinh - thanh ((trong vat) or (trung van)) dung cong dan thai cao*.