Perhaps you should try some spelling variations:
hien hanh » dieu hanh
truong va » truong dai, truong cao, truong dao
hang nong » thang long, han tong
trung va » trang va, trung ha, trung tam
nong dan » cong dan, nong san, nguong dan
dan chan » dan gian, dan ca, van chat
chan tap » han tap, phan tap, chan ta

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien hanh - thanh ((trung va) OR (truong va)) hang nong dan chan tap~".
• Adding a wildcard symbol may retrieve word variants: hoc hien hanh - thanh ((trung va) OR (truong va)) hang nong dan chan tap*.