Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, nhieu tang
thanh toan » thanh hoa, thanh san, tinh toan
hieu lang » hieu quang, nhieu tang, hieu van
hien hanh » dieu hanh
toan tuan » tran tuan, toan quan, doan tuan
tuan dung » tuan duong, tran dung, tan dung
dung cong » dung trong
cong tac » cong ty
tac tren » rac tren, tai tren, tap tren
tren tap » tren tau, tuyen tap, tieng tap

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: hoc ((((chieu sang) OR (hieu lang))) OR (hien hanh)) - thanh toan tuan dung cong tac tren tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((((chieu sang) OR (hieu lang))) or (hien hanh)) - thanh toan tuan dung cong tac tren tap~".
• Adding a wildcard symbol may retrieve word variants: hoc ((((chieu sang) OR (hieu lang))) or (hien hanh)) - thanh toan tuan dung cong tac tren tap*.