Perhaps you should try some spelling variations:
chieu sach » chinh sach, chieu sang, chieu xanh
hanh trung » thanh trung, hanh trang, manh trung
tang nong » hang nong, tang dong, tang mong
van thanh » ban thanh, van tuan
thanh tap » thanh lap, thanh tai, thanh tay
tam tang » dam tang, nam tang, tay tang
nong van » song van, nong dan, nong san

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((chiet tach) or (chieu sach)) - hanh trung tam tang nong van thanh tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chiet tach) OR (chieu sach)) - hanh trung tam tang nong van thanh tap.
• Adding a wildcard symbol may retrieve word variants: hoc ((chiet tach) or (chieu sach)) - hanh trung tam tang nong van thanh tap*.